diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,25 @@
 and this project adheres to the
 [Haskell Package Versioning Policy](https://pvp.haskell.org/).
 
+## v3.0.0 - 2024-12-28
+
+### Breaking changes
+
+- Switch to built-in rules until `new.yaml` rules work ([#619](https://github.com/objectionary/eo-phi-normalizer/pull/619))
+- Update EO to 0.50.0, use `yegor.yaml` by default ([#617](https://github.com/objectionary/eo-phi-normalizer/pull/617), [#641](https://github.com/objectionary/eo-phi-normalizer/pull/641))
+
+### Changes and fixes
+
+- Rename `Normal form` to `NF` ([#627](https://github.com/objectionary/eo-phi-normalizer/pull/627))
+- Run CI on PRs to `develop` ([#638](https://github.com/objectionary/eo-phi-normalizer/pull/638))
+- Sort options in command help messages ([#642](https://github.com/objectionary/eo-phi-normalizer/pull/642))
+
+### Documentation and maintenance
+
+- Add quick start to the README ([#632](https://github.com/objectionary/eo-phi-normalizer/pull/632))
+- Remove the description of dataization ([#635](https://github.com/objectionary/eo-phi-normalizer/pull/635))
+- chore(deps): update baptiste0928/cargo-install action to v3.2.0 ([#640](https://github.com/objectionary/eo-phi-normalizer/pull/640))
+
 ## v2.3.0 - 2024-12-05
 
 ### Breaking changes
diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -89,7 +89,8 @@
                   , "bnfc --haskell -d -p Language.EO.Phi --generic -o src/ grammar/EO/Phi/Syntax.cf"
                   , "cd src/Language/EO/Phi/Syntax"
                   , "alex Lex.x"
-                  , "happy Par.y"
+                  , "happy --info Par.y"
+                  , "rm -f Print.hs ErrM.hs Skel.hs Test.hs Abs.hs.bak Print.hs.bak"
                   , "true"
                   ]
 
@@ -99,7 +100,6 @@
 
             _ <- callCommand fullCommand
             _ <- addLicense "Abs.hs"
-            _ <- addLicense "Print.hs"
 
             postConf simpleUserHooks args flags packageDesc localBuildInfo
         }
diff --git a/app/Main.hs b/app/Main.hs
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -79,11 +79,11 @@
 import Language.EO.Phi.Pipeline.EOTests.PrepareTests as PrepareTests
 import Language.EO.Phi.Report.Data (makeProgramReport, makeReport)
 import Language.EO.Phi.Report.Html (reportCSS, reportJS, toStringReport)
-import Language.EO.Phi.Rules.Common
+import Language.EO.Phi.Rules.Common (ApplicationLimits (ApplicationLimits), Context (..), LogEntry (..), applyRulesChainWith', applyRulesWith, objectSize)
 import Language.EO.Phi.Rules.Fast (fastYegorInsideOut, fastYegorInsideOutAsRule)
 import Language.EO.Phi.Rules.RunYegor (yegorRuleSet)
 import Language.EO.Phi.Rules.Yaml (RuleSet (rules, title), convertRuleNamed, parseRuleSetFromFile)
-import Language.EO.Phi.Syntax (desugar, wrapBytesInBytes, wrapTermination)
+import Language.EO.Phi.Syntax (desugar, errorExpectedDesugaredObject, wrapBytesInBytes, wrapTermination)
 import Language.EO.Phi.ToLaTeX
 import Language.EO.Test.YamlSpec (spec)
 import Options.Applicative hiding (metavar)
@@ -275,52 +275,55 @@
   , test :: Parser CLI'Test
   }
 
+rulesFile :: String
+rulesFile = "yegor.yaml"
+
 commandParser :: CommandParser
 commandParser =
   CommandParser{..}
  where
   metrics = do
-    inputFile <- inputFileArg
-    outputFile <- outputFileOption
     bindingsPath <- bindingsPathOption
+    outputFile <- outputFileOption
+    inputFile <- inputFileArg
     pure CLI'MetricsPhi{..}
   printRules = do
-    rulesPath <- optional $ strOption (long "rules" <> short 'r' <> metavar.file <> help [fmt|{metavarName.file} with user-defined rules. If unspecified, yegor.yaml is rendered.|])
-    latex <- latexSwitch
     compact <- compactSwitch
+    rulesPath <- optional $ strOption (long "rules" <> short 'r' <> metavar.file <> help [fmt|{metavarName.file} with user-defined rules. If unspecified, {rulesFile} is rendered.|])
+    latex <- latexSwitch
     pure CLI'PrintRules{..}
   rewrite = do
-    rulesPath <- optional $ strOption (long "rules" <> short 'r' <> metavar.file <> help [fmt|{metavarName.file} with user-defined rules. If unspecified, builtin set of rules is used.|])
     chain <- switch (long "chain" <> short 'c' <> help "Output rewriting steps.")
+    dependencies <- dependenciesArg
     json <- jsonSwitch
-    latex <- latexSwitch
-    outputFile <- outputFileOption
-    let singleFlag :: String
-        singleFlag = "single"
-    single <- switch (long singleFlag <> short 's' <> help "Output a single expression.")
-    singleLine <- switch (long "single-line" <> short 'l' <> help [fmt|Output a single expression on a single line. Has effect only if the --{singleFlag} is enabled.|])
     maxDepth <-
       let maxValue = 10
        in option auto (long "max-depth" <> metavar.int <> value maxValue <> help [fmt|Maximum depth of rules application. Defaults to {maxValue}.|])
     maxGrowthFactor <-
       let maxValue = 10
        in option auto (long "max-growth-factor" <> metavar.int <> value maxValue <> help [fmt|The factor by which to allow the input term to grow before stopping. Defaults to {maxValue}.|])
+    outputFile <- outputFileOption
+    rulesPath <- optional $ strOption (long "rules" <> short 'r' <> metavar.file <> help [fmt|{metavarName.file} with user-defined rules. If unspecified, builtin set of rules is used.|])
+    let singleFlag :: String
+        singleFlag = "single"
+    single <- switch (long singleFlag <> short 's' <> help "Output a single expression.")
+    singleLine <- switch (long "single-line" <> short 'l' <> help [fmt|Output a single expression on a single line. Has effect only if the --{singleFlag} is enabled.|])
+    latex <- latexSwitch
     inputFile <- inputFileArg
-    dependencies <- dependenciesArg
     pure CLI'RewritePhi{..}
   dataize = do
-    rulesPath <- optional $ strOption (long "rules" <> short 'r' <> metavar.file <> help [fmt|{metavarName.file} with user-defined rules. If unspecified, builtin set of rules is used.|])
-    inputFile <- inputFileArg
+    asPackage <- asPackageSwitch
+    chain <- switch (long "chain" <> help "Display all the intermediate steps.")
     dependencies <- dependenciesArg
+    disabledAtomNames <- many $ strOption (long "disable-atom" <> metavar.atomName <> help "Name of an atom to disable.")
+    enabledAtomNames <- many $ strOption (long "enable-atom" <> metavar.atomName <> help "Name of an atom to enable.")
+    minimizeStuckTerms <- minimizeStuckTermsSwitch
     outputFile <- outputFileOption
     recursive <- switch (long "recursive" <> help "Apply dataization + normalization recursively.")
-    chain <- switch (long "chain" <> help "Display all the intermediate steps.")
-    wrapRawBytes <- switch (long "wrap-raw-bytes" <> help "Wrap raw bytes ⟦ Δ ⤍ 01- ⟧ as Φ.org.eolang.bytes(Δ ⤍ 01-) in the final output.")
+    rulesPath <- optional $ strOption (long "rules" <> short 'r' <> metavar.file <> help [fmt|{metavarName.file} with user-defined rules. If unspecified, builtin set of rules is used.|])
     latex <- latexSwitch
-    asPackage <- asPackageSwitch
-    minimizeStuckTerms <- minimizeStuckTermsSwitch
-    disabledAtomNames <- many $ strOption (long "disable-atom" <> metavar.atomName <> help "Name of an atom to disable.")
-    enabledAtomNames <- many $ strOption (long "enable-atom" <> metavar.atomName <> help "Name of an atom to enable.")
+    wrapRawBytes <- switch (long "wrap-raw-bytes" <> help "Wrap raw bytes ⟦ Δ ⤍ 01- ⟧ as Φ.org.eolang.bytes(Δ ⤍ 01-) in the final output.")
+    inputFile <- inputFileArg
     pure CLI'DataizePhi{..}
   pipeline' =
     CommandParser'Pipeline
@@ -332,8 +335,8 @@
           pure CLI'Pipeline'PrepareTests{..}
       , printDataizeConfigs = do
           configFile <- strOption (long "config" <> short 'c' <> metavar.file <> help [fmt|A pipeline tests configuration {metavarName.file}.|])
-          phiPrefixesToStrip <- many $ strOption (long "strip-phi-prefix" <> short 'p' <> metavar.path <> help [fmt|{metavarName.path} prefix to remove in PHI file paths.|])
           singleLine <- switch (long "single-line" <> short 'l' <> help [fmt|Output configs on an single line.|])
+          phiPrefixesToStrip <- many $ strOption (long "strip-phi-prefix" <> short 'p' <> metavar.path <> help [fmt|{metavarName.path} prefix to remove in PHI file paths.|])
           pure CLI'Pipeline'PrintDataizeConfigs{..}
       }
   pipeline =
@@ -556,17 +559,21 @@
       ]
   ObjectDispatch obj a ->
     ObjectDispatch (wrapRawBytesIn obj) a
-  GlobalObject -> GlobalObject
-  ThisObject -> ThisObject
   Termination -> wrapTermination
+  obj@GlobalObject -> obj
+  obj@GlobalObjectPhiOrg -> obj
+  obj@ThisObject -> obj
   obj@MetaSubstThis{} -> obj
   obj@MetaContextualize{} -> obj
   obj@MetaObject{} -> obj
   obj@MetaTailContext{} -> obj
   obj@MetaFunction{} -> obj
   obj@ConstString{} -> wrapRawBytesIn (desugar obj)
+  obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstInt{} -> wrapRawBytesIn (desugar obj)
+  obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstFloat{} -> wrapRawBytesIn (desugar obj)
+  obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
 
 -- * Main
 
@@ -600,7 +607,7 @@
           -- Temporary hack while rules are not stabilized.
           -- Nothing -> return (True, "Yegor's rules (builtin)", [fastYegorInsideOutAsRule])
           Nothing -> do
-            ruleSet :: RuleSet <- decodeThrow $(embedFileRelative "test/eo/phi/rules/new.yaml")
+            ruleSet :: RuleSet <- decodeThrow $(embedFileRelative "test/eo/phi/rules/yegor.yaml")
             return (False, ruleSet.title, convertRuleNamed <$> ruleSet.rules)
       unless (single || json || latex) $ logStrLn ruleSetTitle
       bindingsWithDeps <- case deepMergePrograms (program' : deps) of
@@ -696,6 +703,16 @@
       bindingsWithDeps <- case deepMergePrograms (program' : deps) of
         Left err -> throwIO (CouldNotMergeDependencies err)
         Right (Program bindingsWithDeps) -> return bindingsWithDeps
+      -- (builtin, ruleSetTitle, rules) <-
+      --   case rulesPath of
+      --     Just path -> do
+      --       ruleSet <- parseRuleSetFromFile path
+      --       return (False, ruleSet.title, convertRuleNamed <$> ruleSet.rules)
+      --     -- Temporary hack while rules are not stabilized.
+      --     -- Nothing -> return (True, "Yegor's rules (builtin)", [fastYegorInsideOutAsRule])
+      --     Nothing -> do
+      --       ruleSet :: RuleSet <- decodeThrow $(embedFileRelative "test/eo/phi/rules/new.yaml")
+      --       return (False, ruleSet.title, convertRuleNamed <$> ruleSet.rules)
       (builtin, _ruleSetTitle, rules) <-
         case rulesPath of
           Just path -> do
diff --git a/data/0.49.1/dependencies.md b/data/0.49.1/dependencies.md
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/dependencies.md
@@ -0,0 +1,3933 @@
+# Dependencies
+
+## [org/eolang/as-phi.phi](./org/eolang/as-phi.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      as-phi(x) ↦ ⟦
+        λ ⤍ Lorg_eolang_as_phi
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/bytes.phi](./org/eolang/bytes.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      bytes(data) ↦ ⟦
+        φ ↦ ξ.data,
+        as-bytes ↦ ξ,
+        as-bool ↦ ξ.eq(Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)),
+        as-number ↦ ⟦
+          φ ↦ ξ.ρ.eq(Φ̇.nan.as-bytes).if(
+            Φ̇.nan,
+            ξ.ρ.eq(Φ̇.positive-infinity.as-bytes).if(
+              Φ̇.positive-infinity,
+              ξ.ρ.eq(Φ̇.negative-infinity.as-bytes).if(
+                Φ̇.negative-infinity,
+                ξ.ρ.size.eq(8).if(
+                  Φ̇.number(ξ.ρ),
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Can't convert non 8 length bytes to a number, bytes are %x", Φ̇.tuple.empty
+                    )
+                  )
+                )
+              )
+            )
+          )
+        ⟧,
+        eq(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_eq
+        ⟧,
+        size ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_size
+        ⟧,
+        slice(start, len) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_slice
+        ⟧,
+        as-i64 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(8).if(
+            Φ̇.i64(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 8 length bytes to i64, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i32 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(4).if(
+            Φ̇.i32(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 4 length bytes to i32, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i16 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(2).if(
+            Φ̇.i16(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 2 length bytes to i16, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        and(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_and
+        ⟧,
+        or(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_or
+        ⟧,
+        xor(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_xor
+        ⟧,
+        not ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_not
+        ⟧,
+        left(x) ↦ ⟦
+          φ ↦ ξ.ρ.right(ξ.x.neg)
+        ⟧,
+        right(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_right
+        ⟧,
+        concat(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_concat
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/cti.phi](./org/eolang/cti.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      cti(delegate, level, message) ↦ ⟦
+        φ ↦ ξ.delegate
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/dataized.phi](./org/eolang/dataized.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      dataized(target) ↦ ⟦
+        φ ↦ Φ̇.try(
+          ξ.target,
+          ⟦
+            φ ↦ Φ̇.error(ξ.ex),
+            ex ↦ ∅
+          ⟧,
+          Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)
+        )
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/error.phi](./org/eolang/error.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      error(message) ↦ ⟦
+        λ ⤍ Lorg_eolang_error
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/false.phi](./org/eolang/false.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      false ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+        not ↦ Φ̇.true,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.right
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/dir.phi](./org/eolang/fs/dir.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        dir(file) ↦ ⟦
+          φ ↦ ξ.file,
+          is-directory ↦ Φ̇.true,
+          made ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.mkdir), ξ.ρ))
+            ),
+            mkdir ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_made_mkdir
+            ⟧
+          ⟧,
+          walk(glob) ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_dir_walk
+          ⟧,
+          deleted ↦ ⟦
+            walked ↦ ξ.ρ.walk("**").at.ρ,
+            len ↦ Φ̇.dataized(ξ.walked.length).as-bytes,
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.rec-delete(ξ.walked, 0)), ξ.ρ
+                )
+              ),
+              ξ.ρ
+            ),
+            rec-delete(tup, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                Φ̇.true,
+                Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.tup.tail.deleted.exists),
+                    ξ.ρ.rec-delete(ξ.tup.head, ξ.index.plus(1))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          tmpfile ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.fs.file(Φ̇.string(ξ.touch.as-bytes)),
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Directory %s does not exist, can't create temporary file",
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+                )
+              )
+            ),
+            touch ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_tmpfile_touch
+            ⟧
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            φ ↦ Φ̇.error(
+              Φ̇.txt.sprintf(
+                "The file %s is a directory, can't open for I/O operations",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/file.phi](./org/eolang/fs/file.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        file(path) ↦ ⟦
+          φ ↦ ξ.path,
+          is-directory ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_is_directory
+          ⟧,
+          exists ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_exists
+          ⟧,
+          touched ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.touch), ξ.ρ))
+            ),
+            touch ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_touched_touch
+            ⟧
+          ⟧,
+          deleted ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.delete), ξ.ρ)), ξ.ρ
+            ),
+            delete ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_deleted_delete
+            ⟧
+          ⟧,
+          size ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_size
+          ⟧,
+          moved(target) ↦ ⟦
+            φ ↦ Φ̇.fs.file(Φ̇.string(ξ.move.as-bytes)),
+            move ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_moved_move
+            ⟧
+          ⟧,
+          as-path ↦ ⟦
+            φ ↦ Φ̇.fs.path(ξ.ρ.path).determined
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            access ↦ Φ̇.dataized(ξ.mode).as-bytes,
+            read ↦ ξ.access.eq("r"),
+            write ↦ ξ.access.eq("w"),
+            append ↦ ξ.access.eq("a"),
+            read-write ↦ ξ.access.eq("r+"),
+            write-read ↦ ξ.access.eq("w+"),
+            read-append ↦ ξ.access.eq("a+"),
+            can-read ↦ ξ.read.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).as-bool,
+            can-write ↦ ξ.write.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).or(
+              ξ.append
+            ).as-bool,
+            must-exists ↦ ξ.read.or(ξ.read-write).as-bool,
+            truncate ↦ ξ.write.or(ξ.write-read).as-bool,
+            φ ↦ ξ.can-read.not.and(ξ.can-write.not).if(
+              Φ̇.error(
+                "Wrong access mod. Only next modes are available: 'r', 'w', 'a', 'r+', 'w+', 'a+'"
+              ),
+              ξ.ρ.exists.not.if(
+                ξ.must-exists.if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "File must exist for given access mod: '%s'",
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.access)
+                    )
+                  ),
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.touched.touch), ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  )
+                ),
+                ξ.truncate.if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.deleted.delete), ξ.ρ.touched.touch
+                        ),
+                        ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  ),
+                  Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.process-file), ξ.ρ))
+                )
+              )
+            ),
+            process-file ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_open_process_file
+            ⟧,
+            file-stream ↦ ⟦
+              read(size) ↦ ⟦
+                φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+                input-block(buffer) ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ ξ.buffer,
+                  read(size) ↦ ⟦
+                    read-bytes ↦ Φ̇.dataized(ξ.ρ.ρ.read-bytes(ξ.size)).as-bytes,
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-read.not.if(
+                      ξ.auto-named-attr-at-216-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-216-18 ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't read from file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                read-bytes(size) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_read_read_bytes
+                ⟧
+              ⟧,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.output-block.write(ξ.buffer).self,
+                output-block ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ Φ̇.true,
+                  write(buffer) ↦ ⟦
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-write.not.if(
+                      ξ.auto-named-attr-at-258-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.written-bytes(ξ.buffer)), ξ.ρ.ρ.output-block
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-258-18 ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't write to file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                written-bytes(buffer) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_write_written_bytes
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/path.phi](./org/eolang/fs/path.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        path(uri) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win32(Φ̇.string(ξ.uri.as-bytes)), ξ.posix(Φ̇.string(ξ.uri.as-bytes))
+          ).determined,
+          joined(paths) ↦ ⟦
+            joined-path ↦ Φ̇.string(
+              Φ̇.txt.text(ξ.ρ.separator).joined(ξ.paths).as-bytes
+            ),
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.ρ.win32(ξ.joined-path), ξ.ρ.posix(ξ.joined-path)
+            ).normalized
+          ⟧,
+          separator ↦ ⟦
+            φ ↦ Φ̇.sys.os.is-windows.if(ξ.ρ.win32.separator, ξ.ρ.posix.separator)
+          ⟧,
+          posix(uri) ↦ ⟦
+            determined ↦ ξ,
+            separator ↦ "/",
+            as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+            as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+            φ ↦ ξ.uri,
+            is-absolute ↦ ⟦
+              φ ↦ ξ.ρ.uri.length.gt(0).and(
+                ξ.ρ.uri.as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+              )
+            ⟧,
+            normalized ↦ ⟦
+              uri-as-bytes ↦ ξ.ρ.uri.as-bytes,
+              is-absolute ↦ ξ.ρ.is-absolute.as-bool,
+              has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                  ξ.ρ.separator
+                )
+              ),
+              path ↦ Φ̇.txt.text(ξ.ρ.separator).joined(
+                Φ̇.structs.list(Φ̇.txt.text(ξ.ρ.uri).split(ξ.ρ.separator)).reduced(
+                  Φ̇.tuple.empty, ξ.auto-named-attr-at-102-25
+                )
+              ),
+              normalized ↦ ξ.ρ.uri.length.eq(0).if(
+                ".",
+                ξ.is-absolute.if(ξ.ρ.separator.concat(ξ.path), ξ.path).concat(
+                  ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                )
+              ).as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                ξ.normalized.eq("//").if("/", Φ̇.string(ξ.normalized))
+              ).determined,
+              auto-named-attr-at-102-25(accum, segment) ↦ ⟦
+                φ ↦ ξ.segment.eq("..").if(
+                  ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                    ξ.accum.head, ξ.ρ.is-absolute.not.if(ξ.accum.with(ξ.segment), ξ.accum)
+                  ),
+                  ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                    ξ.accum, ξ.accum.with(ξ.segment)
+                  )
+                )
+              ⟧
+            ⟧,
+            resolved(other) ↦ ⟦
+              other-as-bytes ↦ ξ.other.as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                Φ̇.string(
+                  ξ.other-as-bytes.slice(0, 1).eq(ξ.ρ.separator).if(
+                    ξ.other-as-bytes, ξ.ρ.uri.concat(ξ.ρ.separator).concat(ξ.other-as-bytes)
+                  )
+                )
+              ).normalized
+            ⟧,
+            basename ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              slice-start-idx ↦ Φ̇.dataized(
+                ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+              ).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                  ξ.pth,
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            extname ↦ ⟦
+              base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+              slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+              φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                "",
+                Φ̇.string(
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            dirname ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                  ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                )
+              )
+            ⟧
+          ⟧,
+          win32(uri) ↦ ⟦
+            separator ↦ "\\",
+            φ ↦ ξ.validated(
+              Φ̇.string(ξ.validated.separated-correctly(ξ.uri).as-bytes)
+            ).determined,
+            validated(uri) ↦ ⟦
+              determined ↦ ξ,
+              separator ↦ ξ.ρ.separator,
+              as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+              as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+              φ ↦ ξ.uri,
+              is-drive-relative(uri) ↦ ⟦
+                φ ↦ Φ̇.txt.regex("/^[a-zA-Z]:/").matches(ξ.uri).as-bool
+              ⟧,
+              is-root-relative(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+                )
+              ⟧,
+              separated-correctly(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                pth ↦ Φ̇.txt.text(Φ̇.string(ξ.uri-as-bytes)),
+                replaced ↦ Φ̇.dataized(
+                  ξ.pth.replaced(Φ̇.txt.regex("/\\//"), ξ.ρ.separator)
+                ).as-bytes,
+                φ ↦ ξ.pth.index-of(ξ.ρ.ρ.ρ.ρ.path.posix.separator).eq(-1).if(
+                  Φ̇.string(ξ.uri-as-bytes), Φ̇.string(ξ.replaced)
+                )
+              ⟧,
+              is-absolute ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.eq(0).if(
+                  Φ̇.false,
+                  ξ.ρ.is-root-relative(ξ.uri-as-bytes).or(
+                    ξ.uri-as-bytes.size.gt(1).and(
+                      ξ.ρ.is-drive-relative(ξ.uri-as-bytes)
+                    )
+                  )
+                )
+              ⟧,
+              normalized ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.uri-as-bytes).as-bool,
+                is-root-relative ↦ ξ.ρ.is-root-relative(ξ.uri-as-bytes).as-bool,
+                driveless ↦ Φ̇.dataized(
+                  ξ.is-drive-relative.if(
+                    ξ.uri-as-bytes.slice(2, ξ.uri-as-bytes.size.plus(-2)), ξ.uri-as-bytes
+                  )
+                ).as-bytes,
+                has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                    ξ.ρ.separator
+                  )
+                ),
+                path ↦ Φ̇.dataized(
+                  Φ̇.txt.text(ξ.ρ.separator).joined(
+                    Φ̇.structs.list(
+                      Φ̇.txt.text(ξ.driveless).split(ξ.ρ.separator)
+                    ).reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-356-27)
+                  )
+                ).as-bytes,
+                normalized ↦ ξ.driveless.size.eq(0).if(
+                  ".",
+                  ξ.is-drive-relative.if(
+                    ξ.driveless.slice(0, 1).eq(ξ.ρ.separator).if(
+                      ξ.ρ.uri.slice(0, 3), ξ.ρ.uri.slice(0, 2)
+                    ),
+                    ξ.is-root-relative.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  ).concat(ξ.path).concat(
+                    ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  )
+                ).as-bytes,
+                φ ↦ ξ.ρ.ρ.validated(
+                  ξ.normalized.eq("\\\\").if(
+                    ξ.ρ.separator, Φ̇.string(ξ.normalized)
+                  )
+                ).determined,
+                auto-named-attr-at-356-27(accum, segment) ↦ ⟦
+                  φ ↦ ξ.segment.eq("..").if(
+                    ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                      ξ.accum.head,
+                      ξ.ρ.is-root-relative.not.and(ξ.ρ.is-drive-relative.not).if(
+                        ξ.accum.with(ξ.segment), ξ.accum
+                      )
+                    ),
+                    ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                      ξ.accum, ξ.accum.with(ξ.segment)
+                    )
+                  )
+                ⟧
+              ⟧,
+              resolved(other) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                valid-other ↦ Φ̇.dataized(ξ.ρ.separated-correctly(ξ.other)).as-bytes,
+                other-is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.valid-other).as-bool,
+                other-is-root-relative ↦ ξ.ρ.is-root-relative(ξ.valid-other).as-bool,
+                φ ↦ ξ.ρ.ρ.validated(
+                  Φ̇.string(
+                    ξ.other-is-drive-relative.if(
+                      ξ.valid-other,
+                      ξ.other-is-root-relative.if(
+                        ξ.ρ.is-drive-relative(ξ.uri-as-bytes).if(
+                          ξ.uri-as-bytes.slice(0, 2).concat(ξ.valid-other), ξ.valid-other
+                        ),
+                        ξ.uri-as-bytes.concat(ξ.ρ.separator).concat(
+                          ξ.valid-other
+                        )
+                      )
+                    )
+                  )
+                ).normalized
+              ⟧,
+              basename ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                slice-start-idx ↦ Φ̇.dataized(
+                  ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+                ).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                    ξ.pth,
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              extname ↦ ⟦
+                base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+                slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+                φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                  "",
+                  Φ̇.string(
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              dirname ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                    ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                  )
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/tmpdir.phi](./org/eolang/fs/tmpdir.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        tmpdir ↦ ⟦
+          φ ↦ Φ̇.fs.dir(Φ̇.fs.file(Φ̇.string(ξ.os-tmp-dir))),
+          os-tmp-dir ↦ Φ̇.dataized(ξ.os-tmp-dir-1).as-bytes,
+          os-tmp-dir-1 ↦ ⟦
+            tmpdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TMPDIR")).as-bytes,
+            tmp ↦ Φ̇.dataized(Φ̇.sys.getenv("TMP")).as-bytes,
+            temp ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMP")).as-bytes,
+            tempdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMPDIR")).as-bytes,
+            userprofile ↦ Φ̇.dataized(Φ̇.sys.getenv("USERPROFILE")).as-bytes,
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.tmp.eq("").if(
+                ξ.temp.eq("").if(
+                  ξ.userprofile.eq("").if("C:\\Windows", ξ.userprofile), ξ.temp
+                ),
+                ξ.tmp
+              ),
+              ξ.tmpdir.eq("").if(
+                ξ.tmp.eq("").if(
+                  ξ.temp.eq("").if(
+                    ξ.tempdir.eq("").if("/tmp", ξ.tempdir), ξ.temp
+                  ),
+                  ξ.tmp
+                ),
+                ξ.tmpdir
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/go.phi](./org/eolang/go.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      go ↦ ⟦
+        id ↦ Φ̇.dataized(
+          Φ̇.malloc.of(
+            8,
+            ⟦
+              φ ↦ ξ.m.put(ξ.m.id),
+              m ↦ ∅
+            ⟧
+          )
+        ).as-bytes,
+        to(body) ↦ ⟦
+          φ ↦ Φ̇.try(ξ.body(ξ.token), ξ.auto-named-attr-at-63-9, Φ̇.true),
+          token ↦ ⟦
+            backward ↦ Φ̇.error(ξ.jump(ξ.ρ.ρ.to(ξ.ρ.body))),
+            jump(value) ↦ ⟦
+              id ↦ ξ.ρ.ρ.ρ.id
+            ⟧,
+            forward(res) ↦ ⟦
+              φ ↦ Φ̇.error(ξ.ρ.jump(ξ.res))
+            ⟧
+          ⟧,
+          auto-named-attr-at-63-9(e) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.id.eq(ξ.e.id).if(ξ.e.value, Φ̇.error(ξ.e))
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i16.phi](./org/eolang/i16.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i16(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i16 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32.as-i16),
+        as-i64 ↦ ξ.as-i32.as-i64,
+        as-number ↦ ξ.as-i64.as-number,
+        as-i32 ↦ ⟦
+          λ ⤍ Lorg_eolang_i16_as_i32
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lt(ξ.x.as-i16.as-i32)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lte(ξ.x.as-i16.as-i32)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gt(ξ.x.as-i16.as-i32)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gte(ξ.x.as-i16.as-i32)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.times(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.plus(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i16.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i16 ↦ ξ.x.as-i16,
+          bts ↦ ξ.ρ.as-i32.div(ξ.x-as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧),
+          φ ↦ ξ.x-as-i16.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i16 zero",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i32.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))).if(
+              ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i32.phi](./org/eolang/i32.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i32(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i32 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32),
+        as-number ↦ ξ.as-i64.as-number,
+        as-i64 ↦ ⟦
+          λ ⤍ Lorg_eolang_i32_as_i64
+        ⟧,
+        as-i16 ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 2).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(
+            Φ̇.i16(ξ.ρ.as-bytes.slice(2, 2)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i32 number %d to i16 because it's out of i16 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            )
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lt(ξ.x.as-i32.as-i64)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lte(ξ.x.as-i32.as-i64)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gt(ξ.x.as-i32.as-i64)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gte(ξ.x.as-i32.as-i64)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.times(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.plus(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i32.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i32 ↦ ξ.x.as-i32,
+          bts ↦ ξ.ρ.as-i64.div(ξ.x-as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧),
+          φ ↦ ξ.x-as-i32.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i32 zero", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))).if(
+              ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i64.phi](./org/eolang/i64.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i64(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i64 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64),
+        as-i16 ↦ ξ.as-i32.as-i16,
+        as-i32 ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 4).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(
+            Φ̇.i32(ξ.ρ.as-bytes.slice(4, 4)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i64 number %d to i32 because it's out of i32 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-number)
+              )
+            )
+          )
+        ⟧,
+        as-number ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_as_number
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.as-i64.gt(ξ.ρ.minus(ξ.ρ.ρ.i64(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(ξ.ρ.ρ.i64(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_div
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/bytes-as-input.phi](./org/eolang/io/bytes-as-input.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        bytes-as-input(bts) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.bts, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+            input-block(data, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                to-read ↦ Φ̇.dataized(ξ.size).as-bytes,
+                available ↦ Φ̇.dataized(ξ.ρ.data.size).as-bytes,
+                next ↦ Φ̇.dataized(
+                  Φ̇.number(ξ.available).gt(ξ.to-read).if(ξ.to-read, ξ.available)
+                ).as-bytes,
+                φ ↦ ξ.available.eq(0).if(
+                  ξ.ρ.ρ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.bytes(⟦ Δ ⤍ -- ⟧)),
+                  ξ.ρ.ρ.input-block(
+                    ξ.ρ.data.slice(
+                      ξ.next, Φ̇.number(ξ.available).minus(Φ̇.number(ξ.next))
+                    ).as-bytes,
+                    ξ.ρ.data.slice(0, ξ.next).as-bytes
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/console.phi](./org/eolang/io/console.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        console ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(ξ.windows-console, ξ.posix-console).platform,
+          posix-console ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.posix(
+                      "read",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.stdin-fileno), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.posix(
+                          "write",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.posix.stdout-fileno
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          windows-console ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.win32(
+                      "ReadFile",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.std-input-handle), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.win32(
+                          "WriteFile",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.win32.std-output-handle
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/dead-input.phi](./org/eolang/io/dead-input.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        dead-input ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block,
+            input-block ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ -- ⟧),
+              read(size) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.input-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/dead-output.phi](./org/eolang/io/dead-output.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        dead-output ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block,
+            output-block ↦ ⟦
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.output-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/input-length.phi](./org/eolang/io/input-length.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        input-length(input) ↦ ⟦
+          chunk ↦ 4096,
+          φ ↦ ξ.rec-read(ξ.input, 0),
+          rec-read(input, length) ↦ ⟦
+            read-bytes ↦ ξ.input.read(ξ.ρ.chunk).read.ρ,
+            φ ↦ ξ.read-bytes.size.eq(0).if(
+              ξ.length, ξ.ρ.rec-read(ξ.read-bytes, ξ.length.plus(ξ.read-bytes.size))
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/malloc-as-output.phi](./org/eolang/io/malloc-as-output.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        malloc-as-output(allocated) ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block(0).write(ξ.buffer).self,
+            output-block(offset) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty, ξ.ρ.ρ.ρ.allocated.write(ξ.ρ.offset, ξ.buffer)
+                    ),
+                    ξ.ρ.ρ.output-block(ξ.ρ.offset.plus(ξ.buffer.size))
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/stdin.phi](./org/eolang/io/stdin.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        stdin ↦ ⟦
+          φ ↦ ξ.all-lines,
+          all-lines ↦ ⟦
+            φ ↦ ξ.rec-read(ξ.ρ.next-line, Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.true),
+            separator ↦ Φ̇.dataized(Φ̇.sys.line-separator).as-bytes,
+            rec-read(line, buffer, first) ↦ ⟦
+              φ ↦ ξ.line.length.eq(0).if(
+                Φ̇.string(ξ.buffer),
+                ξ.ρ.rec-read(
+                  ξ.ρ.ρ.next-line,
+                  ξ.first.if(
+                    ξ.buffer.concat(ξ.line), ξ.buffer.concat(ξ.ρ.separator).concat(ξ.line)
+                  ),
+                  Φ̇.false
+                )
+              )
+            ⟧
+          ⟧,
+          next-line ↦ ⟦
+            first ↦ Φ̇.io.console.read(1).self,
+            φ ↦ ξ.first.as-bytes.size.eq(0).if(
+              "", ξ.rec-read(ξ.first, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+            ),
+            rec-read(input, buffer) ↦ ⟦
+              char ↦ ξ.input.as-bytes,
+              next ↦ ξ.input.read(1).self,
+              φ ↦ ξ.char.eq(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).or(
+                ξ.char.eq("\r").and(ξ.next.as-bytes.eq("\n")).or(ξ.char.eq("\n"))
+              ).if(
+                Φ̇.string(ξ.buffer), ξ.ρ.rec-read(ξ.next, ξ.buffer.concat(ξ.char))
+              )
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/stdout.phi](./org/eolang/io/stdout.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        stdout(text) ↦ ⟦
+          φ ↦ Φ̇.seq(
+            Φ̇.tuple(
+              Φ̇.tuple(Φ̇.tuple.empty, Φ̇.io.console.write(ξ.text)), Φ̇.true
+            )
+          )
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/tee-input.phi](./org/eolang/io/tee-input.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        tee-input(input, output) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.input, ξ.ρ.output, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(
+              ξ.size
+            ).self,
+            input-block(input, output, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                read-bytes ↦ ξ.ρ.input.read(ξ.size).read.ρ,
+                written-bytes ↦ ξ.ρ.output.write(ξ.read-bytes).write.ρ,
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.written-bytes),
+                    ξ.ρ.ρ.input-block(
+                      ξ.read-bytes, ξ.written-bytes, ξ.read-bytes.as-bytes
+                    )
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/malloc.phi](./org/eolang/malloc.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      malloc ↦ ⟦
+        empty(scope) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.malloc.of(0, ξ.scope)
+        ⟧,
+        for(object, scope) ↦ ⟦
+          bts ↦ Φ̇.dataized(ξ.object).as-bytes,
+          φ ↦ ξ.ρ.ρ.malloc.of(ξ.bts.size, ξ.auto-named-attr-at-96-9),
+          auto-named-attr-at-96-9(m) ↦ ⟦
+            φ ↦ Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.m.write(0, ξ.ρ.bts)), ξ.ρ.scope(ξ.m)
+              )
+            )
+          ⟧
+        ⟧,
+        of(size, scope) ↦ ⟦
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_malloc_of_φ
+          ⟧,
+          allocated(id) ↦ ⟦
+            φ ↦ ξ.get,
+            get ↦ ξ.read(0, ξ.size),
+            size ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_size
+            ⟧,
+            resized(new-size) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_resized
+            ⟧,
+            read(offset, length) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_read
+            ⟧,
+            write(offset, data) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_write
+            ⟧,
+            put(object) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.write(0, ξ.object)), ξ.ρ.get
+                )
+              )
+            ⟧
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/angle.phi](./org/eolang/math/angle.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        angle(value) ↦ ⟦
+          φ ↦ ξ.value,
+          in-degrees ↦ ξ.ρ.angle(ξ.ρ.times(180).div(Φ̇.math.pi)),
+          in-radians ↦ ξ.ρ.angle(ξ.times(Φ̇.math.pi).div(180)),
+          sin ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_sin
+          ⟧,
+          cos ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_cos
+          ⟧,
+          tan ↦ ⟦
+            cosine ↦ Φ̇.dataized(ξ.ρ.cos).as-bytes,
+            φ ↦ ξ.cosine.eq(0).if(Φ̇.nan, ξ.ρ.sin.div(ξ.cosine))
+          ⟧,
+          ctan ↦ ⟦
+            sine ↦ Φ̇.dataized(ξ.ρ.sin).as-bytes,
+            φ ↦ ξ.sine.eq(0).if(Φ̇.nan, ξ.ρ.cos.div(ξ.sine))
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/e.phi](./org/eolang/math/e.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        e ↦ 2.718281828459045,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/integral.phi](./org/eolang/math/integral.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        integral(fun, a, b, n) ↦ ⟦
+          subsection(a, b) ↦ ⟦
+            φ ↦ ξ.b.minus(ξ.a).div(6).times(
+              ξ.ρ.fun(ξ.a).plus(
+                4.times(ξ.ρ.fun(0.5.times(ξ.a.plus(ξ.b)))).plus(ξ.ρ.fun(ξ.b))
+              )
+            )
+          ⟧,
+          φ ↦ Φ̇.malloc.of(8, ξ.auto-named-attr-at-50-11).as-number,
+          auto-named-attr-at-50-11(sum) ↦ ⟦
+            φ ↦ Φ̇.malloc.for(ξ.ρ.a, ξ.auto-named-attr-at-53-16),
+            auto-named-attr-at-53-16(left) ↦ ⟦
+              right ↦ ξ.ρ.ρ.b,
+              step ↦ ξ.right.minus(ξ.left).div(ξ.ρ.ρ.n).as-number,
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple.empty,
+                    Φ̇.while(
+                      ξ.auto-named-attr-at-59-21,
+                      ⟦
+                        φ ↦ Φ̇.true,
+                        i ↦ ∅
+                      ⟧
+                    )
+                  ),
+                  ξ.ρ.sum
+                )
+              ),
+              auto-named-attr-at-59-21(i) ↦ ⟦
+                φ ↦ ξ.ρ.left.as-number.plus(ξ.ρ.step).lt(ξ.ρ.right).if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple.empty,
+                          ξ.ρ.ρ.sum.put(
+                            ξ.ρ.ρ.sum.as-number.plus(
+                              ξ.ρ.ρ.ρ.subsection(
+                                ξ.ρ.left.as-number, ξ.ρ.left.as-number.plus(ξ.ρ.step)
+                              )
+                            )
+                          )
+                        ),
+                        ξ.ρ.left.put(ξ.ρ.left.as-number.plus(ξ.ρ.step))
+                      ),
+                      Φ̇.true
+                    )
+                  ),
+                  Φ̇.false
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/numbers.phi](./org/eolang/math/numbers.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        numbers(sequence) ↦ ⟦
+          φ ↦ ξ.sequence,
+          max ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get max number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.negative-infinity,
+                ⟦
+                  max ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.item.as-number.gt(ξ.max).if(ξ.item, ξ.max)
+                ⟧
+              )
+            )
+          ⟧,
+          min ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get min number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.positive-infinity,
+                ⟦
+                  min ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.min.gt(ξ.item.as-number).if(ξ.item, ξ.min)
+                ⟧
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/pi.phi](./org/eolang/math/pi.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        pi ↦ 3.141592653589793,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/random.phi](./org/eolang/math/random.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        random(seed) ↦ ⟦
+          fixed ↦ ξ,
+          φ ↦ ξ.seed.as-number.div(
+            Φ̇.bytes(⟦ Δ ⤍ 00-20-00-00-00-00-00-00 ⟧).as-i64.as-number
+          ),
+          next ↦ ξ.ρ.random(
+            ξ.seed.times(25214903917).plus(11).as-i64.and(
+              Φ̇.bytes(⟦ Δ ⤍ 00-0F-FF-FF-FF-FF-FF-FF ⟧)
+            ).as-i64.as-number
+          ).fixed,
+          pseudo ↦ ⟦
+            const-1 ↦ 35,
+            const-2 ↦ 53,
+            const-3 ↦ 17,
+            one ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-01 ⟧),
+            φ ↦ ξ.ρ.ρ.random(ξ.time-seed),
+            time-seed ↦ ξ.time-bytes.left(ξ.const-1).and(
+              ξ.one.left(ξ.const-2).as-i64.minus(ξ.one).as-bytes
+            ).as-i64.plus(
+              ξ.time-bytes.left(ξ.const-3).and(
+                ξ.one.left(ξ.const-1).as-i64.minus(ξ.one).as-bytes
+              ).as-i64.plus(
+                ξ.time-bytes.and(
+                  ξ.one.left(ξ.const-3).as-i64.minus(ξ.one).as-bytes
+                ).as-i64
+              )
+            ).as-number,
+            time-bytes ↦ Φ̇.sys.os.is-windows.if(
+              Φ̇.sys.win32(
+                "GetSystemTime", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.system-time)
+              ).milliseconds,
+              ⟦
+                timeval ↦ Φ̇.sys.posix(
+                  "gettimeofday", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.timeval)
+                ).output,
+                φ ↦ ξ.timeval.tv-sec.times(1000).plus(
+                  ξ.timeval.tv-usec.as-i64.div(1000.as-i64).as-number
+                )
+              ⟧
+            ).as-i64.as-bytes
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/real.phi](./org/eolang/math/real.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        real(num) ↦ ⟦
+          φ ↦ ξ.num,
+          exp ↦ Φ̇.math.real(Φ̇.math.e).pow(ξ.num),
+          mod(x) ↦ ⟦
+            dividend ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            divisor ↦ Φ̇.number(ξ.x.as-bytes),
+            φ ↦ ξ.divisor.eq(0).if(
+              Φ̇.error("Can't calculate mod by zero"),
+              ξ.dividend.gt(0).if(ξ.abs-mod, ξ.abs-mod.neg)
+            ),
+            abs-mod ↦ ⟦
+              dividend-abs ↦ Φ̇.math.real(ξ.ρ.dividend).abs,
+              divisor-abs ↦ Φ̇.math.real(ξ.ρ.divisor).abs,
+              φ ↦ ξ.dividend-abs.minus(
+                ξ.divisor-abs.times(ξ.dividend-abs.div(ξ.divisor-abs).floor)
+              )
+            ⟧
+          ⟧,
+          abs ↦ ⟦
+            value ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            φ ↦ ξ.value.gte(0).if(ξ.value, ξ.value.neg)
+          ⟧,
+          pow(x) ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_pow
+          ⟧,
+          sqrt ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_sqrt
+          ⟧,
+          ln ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_ln
+          ⟧,
+          acos ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_acos
+          ⟧,
+          asin ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_asin
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/nan.phi](./org/eolang/nan.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      nan ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F8-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ ξ,
+        is-nan ↦ Φ̇.true,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert NaN to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        times(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        plus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        div(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/negative-infinity.phi](./org/eolang/negative-infinity.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      negative-infinity ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ FF-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.positive-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert negative infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.positive-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.positive-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.positive-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/net/socket.phi](./org/eolang/net/socket.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      net ↦ ⟦
+        socket(address, port) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win-socket(ξ.address, ξ.port), ξ.posix-socket(ξ.address, ξ.port)
+          ),
+          htons(port) ↦ ⟦
+            bts ↦ ξ.port.as-i16.as-bytes,
+            φ ↦ ξ.bts.and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧)).left(8).or(
+              ξ.bts.right(8).and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧))
+            ).as-i16
+          ⟧,
+          as-input(recv) ↦ ⟦
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ ξ.ρ.ρ.ρ.recv(ξ.size).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          as-output(send) ↦ ⟦
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.send(ξ.buffer)), ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          posix-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.posix(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.af-inet), Φ̇.sys.posix.sock-stream
+                ),
+                Φ̇.sys.posix.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.posix(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.posix.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' posix syscall, reason: '%s'",
+                  Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.strerror.code)
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.posix.sockaddr-in(
+              Φ̇.sys.posix.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.posix(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.posix(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            strerror ↦ ⟦
+              φ ↦ Φ̇.sys.posix(
+                "strerror",
+                Φ̇.tuple(
+                  Φ̇.tuple.empty, Φ̇.sys.posix("errno", Φ̇.tuple.empty).code
+                )
+              )
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.posix("close", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)).code,
+              φ ↦ ξ.closed.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a posix socket '%d', reason: '%s'",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.strerror.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              φ ↦ ξ.ρ.sd.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't create a posix socket, reason: '%s'",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.strerror.code)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.scope,
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.ρ.closed-socket(ξ.ρ.sd)
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-276-10),
+              auto-named-attr-at-276-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.posix(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on posix socket '%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-300-10),
+              auto-named-attr-at-300-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.posix(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.posix(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind posix socket '%d' to '%s:%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', reason: '%s'",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.strerror.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-325-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-325-22 ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.posix(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on posix socket '%d', reason: %s",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.strerror.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          win-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.win32(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.af-inet), Φ̇.sys.win32.sock-stream
+                ),
+                Φ̇.sys.win32.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.win32(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.win32.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' win32 function call, WSA error code: %d",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.last-error.code
+                  )
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.win32.sockaddr-in(
+              Φ̇.sys.win32.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.win32(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.win32(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            last-error ↦ ⟦
+              φ ↦ Φ̇.sys.win32("WSAGetLastError", Φ̇.tuple.empty)
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.win32(
+                "closesocket", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)
+              ).code,
+              φ ↦ ξ.closed.eq(Φ̇.sys.win32.socket-error).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a win32 socket '%d', WSA error code: %d",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.last-error.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              started-up ↦ Φ̇.sys.win32(
+                "WSAStartup", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.winsock-version-2-2)
+              ).code,
+              cleaned-up ↦ Φ̇.sys.win32("WSACleanup", Φ̇.tuple.empty).code,
+              φ ↦ ξ.started-up.eq(0).not.if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't initialize Winsock via 'WSAStartup' call, WSA error code: %d",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.started-up)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.ρ.sd.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Couldn't create a win32 socket, WSA error code: %d",
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.last-error.code)
+                      )
+                    ),
+                    Φ̇.try(
+                      ξ.scope,
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.ρ.closed-socket(ξ.ρ.sd)
+                    )
+                  ),
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.cleaned-up.eq(Φ̇.sys.win32.socket-error).if(
+                    Φ̇.error("Couldn't cleanup Winsock resources"), Φ̇.true
+                  )
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-485-10),
+              auto-named-attr-at-485-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.win32(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on win32 socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-509-10),
+              auto-named-attr-at-509-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.win32(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.win32(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind win32 socket '%d' to '%s:%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', WSA error code: %d",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.last-error.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-534-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-534-22 ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.win32(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on win32 socket '%d', WSA error code: %d",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.last-error.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/number.phi](./org/eolang/number.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      number(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-number ↦ ξ,
+        neg ↦ ξ.times(-1),
+        as-i32 ↦ ξ.as-i64.as-i32,
+        as-i16 ↦ ξ.as-i32.as-i16,
+        is-nan ↦ ξ.as-bytes.eq(Φ̇.nan.as-bytes),
+        as-i64 ↦ ⟦
+          λ ⤍ Lorg_eolang_number_as_i64
+        ⟧,
+        eq(x) ↦ ⟦
+          x-as-bytes ↦ Φ̇.dataized(ξ.x).as-bytes,
+          self-as-bytes ↦ ξ.ρ.as-bytes,
+          pos-zero-as-bytes ↦ 0.as-bytes,
+          neg-zero-as-bytes ↦ -0.as-bytes,
+          φ ↦ ξ.ρ.is-nan.or(Φ̇.number(ξ.x-as-bytes).is-nan).if(
+            Φ̇.false,
+            ξ.x-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+              ξ.x-as-bytes.eq(ξ.neg-zero-as-bytes)
+            ).and(
+              ξ.self-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+                ξ.self-as-bytes.eq(ξ.neg-zero-as-bytes)
+              )
+            ).or(ξ.self-as-bytes.eq(ξ.x-as-bytes))
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.gt(ξ.ρ.minus(Φ̇.number(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(Φ̇.number(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_div
+        ⟧,
+        floor ↦ ⟦
+          λ ⤍ Lorg_eolang_number_floor
+        ⟧,
+        is-integer ↦ ⟦
+          φ ↦ ξ.ρ.is-finite.and(ξ.ρ.eq(ξ.ρ.floor))
+        ⟧,
+        is-finite ↦ ⟦
+          φ ↦ ξ.ρ.is-nan.not.and(
+            ξ.ρ.eq(Φ̇.positive-infinity).or(ξ.ρ.eq(Φ̇.negative-infinity)).not
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/positive-infinity.phi](./org/eolang/positive-infinity.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      positive-infinity ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.negative-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert positive infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        gt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.negative-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.negative-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.negative-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/rust.phi](./org/eolang/rust.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      rust(code, portal, params) ↦ ⟦
+        λ ⤍ Lorg_eolang_rust
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/seq.phi](./org/eolang/seq.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      seq(steps) ↦ ⟦
+        φ ↦ ξ.steps.length.eq(0).if(Φ̇.true, ξ.loop(0)),
+        max-len ↦ Φ̇.dataized(ξ.steps.length.minus(1)).as-bytes,
+        loop(index) ↦ ⟦
+          φ ↦ ξ.index.lt(ξ.ρ.max-len).and(
+            Φ̇.dataized(ξ.ρ.steps.at(ξ.index)).as-bool.or(Φ̇.true)
+          ).if(ξ.ρ.loop(ξ.index.plus(1)), ξ.ρ.steps.at(ξ.index))
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/string.phi](./org/eolang/string.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      string(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        length ↦ ⟦
+          size ↦ ξ.ρ.as-bytes.size,
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          φ ↦ ξ.size.eq(0).if(0, ξ.rec-length(0, 0)),
+          increase-length(index, char-size, len) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-length(ξ.index.plus(ξ.char-size), ξ.len.plus(1))
+            )
+          ⟧,
+          rec-length(index, accum) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.accum,
+              ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                ξ.ρ.increase-length(ξ.index, 1, ξ.accum),
+                ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                  ξ.ρ.increase-length(ξ.index, 2, ξ.accum),
+                  ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                    ξ.ρ.increase-length(ξ.index, 3, ξ.accum),
+                    ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                      ξ.ρ.increase-length(ξ.index, 4, ξ.accum),
+                      Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Unknown byte format (%x), can't recognize character",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        slice(start, len) ↦ ⟦
+          start-bytes ↦ Φ̇.dataized(ξ.start).as-bytes,
+          len-bytes ↦ Φ̇.dataized(ξ.len).as-bytes,
+          num-start ↦ Φ̇.number(ξ.start-bytes),
+          num-len ↦ Φ̇.number(ξ.len-bytes),
+          size ↦ ξ.ρ.as-bytes.size,
+          end ↦ ξ.num-start.plus(ξ.num-len),
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          bts-start ↦ Φ̇.dataized(
+            ξ.rec-index(
+              0,
+              0,
+              ξ.num-start,
+              Φ̇.txt.sprintf(
+                "Start index (%d) is out of string bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            )
+          ).as-bytes,
+          bts-length ↦ ξ.rec-index(
+            Φ̇.number(ξ.bts-start),
+            0,
+            ξ.num-len,
+            Φ̇.txt.sprintf(
+              "Start index + length to slice (%d) is out of string bounds",
+              Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start.plus(ξ.num-len))
+            )
+          ).minus(ξ.bts-start),
+          φ ↦ ξ.num-start.lt(0).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Start index must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            ),
+            ξ.num-len.lt(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Length to slice must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-len)
+                )
+              ),
+              ξ.num-len.eq(0).if(
+                "", Φ̇.string(ξ.ρ.as-bytes.slice(ξ.bts-start, ξ.bts-length))
+              )
+            )
+          ),
+          increase(index, char-size, accum, result, cause) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-index(
+                ξ.index.plus(ξ.char-size), ξ.accum.plus(1), ξ.result, ξ.cause
+              )
+            )
+          ⟧,
+          rec-index(index, accum, result, cause) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.accum.eq(ξ.result).if(
+              ξ.index,
+              ξ.index.eq(ξ.ρ.size).if(
+                Φ̇.error(ξ.cause),
+                ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                  ξ.ρ.increase(ξ.index, 1, ξ.accum, ξ.result, ξ.cause),
+                  ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                    ξ.ρ.increase(ξ.index, 2, ξ.accum, ξ.result, ξ.cause),
+                    ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                      ξ.ρ.increase(ξ.index, 3, ξ.accum, ξ.result, ξ.cause),
+                      ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                        ξ.ρ.increase(ξ.index, 4, ξ.accum, ξ.result, ξ.cause),
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Unknown byte format (%x), can't recognize character",
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                          )
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/bytes-as-array.phi](./org/eolang/structs/bytes-as-array.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        bytes-as-array(bts) ↦ ⟦
+          bytes-size ↦ Φ̇.dataized(ξ.bts.size).as-bytes,
+          φ ↦ ξ.slice-byte(Φ̇.tuple.empty, 0),
+          slice-byte(tup, index) ↦ ⟦
+            φ ↦ ξ.index.lt(ξ.ρ.bytes-size).if(
+              ξ.ρ.slice-byte(
+                ξ.tup.with(ξ.ρ.bts.slice(ξ.index, 1)), ξ.index.plus(1)
+              ),
+              ξ.tup
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/hash-code-of.phi](./org/eolang/structs/hash-code-of.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        hash-code-of(input) ↦ ⟦
+          input-as-bytes ↦ Φ̇.dataized(ξ.input.as-bytes).as-bytes,
+          size ↦ Φ̇.dataized(ξ.input-as-bytes.size).as-bytes,
+          magic-number ↦ 31.as-i64,
+          φ ↦ ξ.rec-hash-code(0, 0),
+          rec-hash-code(acc, index) ↦ ⟦
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.acc.as-number,
+              ξ.ρ.rec-hash-code(
+                ξ.ρ.magic-number.times(ξ.acc).plus(
+                  Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(
+                    ξ.ρ.input-as-bytes.slice(ξ.index, 1)
+                  ).as-i64
+                ),
+                ξ.index.plus(1)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/list.phi](./org/eolang/structs/list.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        list(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-empty ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.origin.length)
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.ρ.origin.with(ξ.x))
+          ⟧,
+          withi(index, item) ↦ ⟦
+            φ ↦ ξ.ρ.head(ξ.index).with(ξ.item).concat(
+              ξ.ρ.tail(ξ.ρ.origin.length.minus(ξ.index))
+            )
+          ⟧,
+          reducedi(start, func) ↦ ⟦
+            origin-len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.origin-len).if(ξ.start, ξ.rec-reduced(ξ.start, 0.as-bytes)),
+            rec-reduced(accum, index) ↦ ⟦
+              idx-as-number ↦ ξ.index.as-number,
+              next-index ↦ Φ̇.dataized(1.plus(ξ.idx-as-number)).as-bytes,
+              φ ↦ ξ.next-index.eq(ξ.ρ.origin-len).if(
+                ξ.accumulated, ξ.ρ.rec-reduced(ξ.accumulated, ξ.next-index)
+              ),
+              accumulated ↦ ξ.ρ.func(
+                ξ.accum, ξ.ρ.ρ.origin.at(ξ.idx-as-number), ξ.idx-as-number
+              )
+            ⟧
+          ⟧,
+          reduced(start, func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(ξ.start, ξ.auto-named-attr-at-83-42),
+            auto-named-attr-at-83-42(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.accum, ξ.item)
+            ⟧
+          ⟧,
+          mappedi(func) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-93-24)
+            ),
+            auto-named-attr-at-93-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.with(ξ.ρ.func(ξ.item, ξ.idx))
+            ⟧
+          ⟧,
+          mapped(func) ↦ ⟦
+            φ ↦ ξ.ρ.mappedi(ξ.auto-named-attr-at-103-30),
+            auto-named-attr-at-103-30(item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          eachi(func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-113-22),
+            auto-named-attr-at-113-22(acc, item, index) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.acc), ξ.ρ.func(ξ.item, ξ.index)
+                )
+              )
+            ⟧
+          ⟧,
+          each(func) ↦ ⟦
+            φ ↦ ξ.ρ.eachi(ξ.auto-named-attr-at-124-32),
+            auto-named-attr-at-124-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          withouti(i) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-131-24)
+            ),
+            auto-named-attr-at-131-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.i.eq(ξ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          without(element) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-142-20)
+            ),
+            auto-named-attr-at-142-20(accum, item) ↦ ⟦
+              φ ↦ ξ.ρ.element.eq(ξ.item).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          eq(other) ↦ ⟦
+            φ ↦ ξ.ρ.origin.length.eq(ξ.other.length).and(
+              ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-157-24)
+            ),
+            auto-named-attr-at-157-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.and(ξ.item.eq(ξ.ρ.other.at(ξ.idx)))
+            ⟧
+          ⟧,
+          concat(passed) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.passed).reduced(
+              ξ.ρ,
+              ⟦
+                φ ↦ ξ.accum.with(ξ.item),
+                accum ↦ ∅,
+                item ↦ ∅
+              ⟧
+            )
+          ⟧,
+          index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-177-24),
+            auto-named-attr-at-177-24(accum, item, index) ↦ ⟦
+              φ ↦ -1.eq(ξ.accum).and(ξ.item.eq(ξ.ρ.wanted)).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          last-index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-190-24),
+            auto-named-attr-at-190-24(accum, item, index) ↦ ⟦
+              φ ↦ ξ.item.eq(ξ.ρ.wanted).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          contains(element) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.element)).not
+          ⟧,
+          sorted ↦ ⟦
+            φ ↦ ξ.ρ
+          ⟧,
+          filteredi(func) ↦ ⟦
+            origin-length ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ ξ.ρ.ρ.list(ξ.rec-filtered(0.as-bytes, Φ̇.tuple.empty)),
+            rec-filtered(idx-as-bytes, accum) ↦ ⟦
+              original ↦ ξ.ρ.ρ.origin,
+              index ↦ ξ.idx-as-bytes.as-number,
+              item ↦ ξ.ρ.ρ.origin.at(ξ.index),
+              φ ↦ ξ.idx-as-bytes.eq(ξ.ρ.origin-length).if(
+                ξ.accum,
+                ξ.ρ.rec-filtered(
+                  1.plus(ξ.index).as-bytes,
+                  ξ.ρ.func(ξ.item, ξ.index).if(ξ.accum.with(ξ.item), ξ.accum)
+                )
+              )
+            ⟧
+          ⟧,
+          filtered(func) ↦ ⟦
+            φ ↦ ξ.ρ.filteredi(ξ.auto-named-attr-at-243-32),
+            auto-named-attr-at-243-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          head(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            φ ↦ Φ̇.switch(
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty,
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, 0.eq(ξ.idx)), ξ.ρ.ρ.list(Φ̇.tuple.empty)
+                      )
+                    ),
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, 0.gt(ξ.idx)), ξ.ρ.tail(ξ.index.as-number.neg)
+                    )
+                  ),
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin.length.lte(ξ.idx)), ξ.ρ
+                  )
+                ),
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.true),
+                  ξ.ρ.ρ.list(
+                    ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-264-32)
+                  )
+                )
+              )
+            ),
+            auto-named-attr-at-264-32(accum, item, index) ↦ ⟦
+              φ ↦ ξ.index.gte(ξ.ρ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          tail(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            start ↦ Φ̇.dataized(ξ.ρ.origin.length.minus(ξ.idx.as-number)).as-bytes,
+            φ ↦ 0.gt(ξ.start).if(
+              ξ.ρ,
+              ξ.ρ.ρ.list(
+                ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-280-26)
+              )
+            ),
+            auto-named-attr-at-280-26(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.idx.gte(ξ.ρ.start).if(ξ.accum.with(ξ.item), ξ.accum)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/map.phi](./org/eolang/structs/map.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        map(pairs) ↦ ⟦
+          φ ↦ ξ.auto-named-attr-at-37-6.initialized,
+          entry(key, value) ↦ ⟦⟧,
+          initialized(entries) ↦ ⟦
+            initialized ↦ ξ,
+            size ↦ ξ.entries.length,
+            keys ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.key,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            values ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.value,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            has(key) ↦ ⟦
+              φ ↦ ξ.ρ.found(ξ.key).exists
+            ⟧,
+            found(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.size.eq(0).if(ξ.not-found, ξ.rec-key-search(ξ.not-found, 0)),
+              rec-key-search(found, index) ↦ ⟦
+                entry ↦ ξ.ρ.ρ.entries.at(ξ.index),
+                φ ↦ ξ.found.exists.or(ξ.ρ.ρ.size.eq(ξ.index)).if(
+                  ξ.found,
+                  ξ.ρ.rec-key-search(
+                    ξ.ρ.hash.eq(ξ.entry.hash).if(
+                      ξ.auto-named-attr-at-133-54, ξ.found
+                    ),
+                    ξ.index.plus(1)
+                  )
+                ),
+                auto-named-attr-at-133-54 ↦ ⟦
+                  exists ↦ Φ̇.true,
+                  get ↦ ξ.ρ.entry.value
+                ⟧
+              ⟧,
+              not-found ↦ ⟦
+                exists ↦ Φ̇.false,
+                get ↦ Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Object by hash code %d from given key does not exists",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.hash)
+                  )
+                )
+              ⟧
+            ⟧,
+            with(key, value) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-153-50
+                ).origin.with(ξ.auto-named-attr-at-154-12)
+              ),
+              auto-named-attr-at-153-50(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧,
+              auto-named-attr-at-154-12 ↦ ⟦
+                key ↦ ξ.ρ.key,
+                value ↦ ξ.ρ.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧,
+            without(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-167-48
+                ).origin
+              ),
+              auto-named-attr-at-167-48(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧
+            ⟧
+          ⟧,
+          auto-named-attr-at-37-6 ↦ ⟦
+            pairs-size ↦ Φ̇.dataized(ξ.ρ.pairs.length).as-bytes,
+            φ ↦ ξ.ρ.initialized(
+              ξ.pairs-size.eq(0).if(
+                Φ̇.tuple.empty,
+                ξ.rec-rebuild(Φ̇.tuple.empty, 0, Φ̇.structs.list(Φ̇.tuple.empty))
+              )
+            ),
+            rec-rebuild(accum, index, hashes) ↦ ⟦
+              entry ↦ ξ.ρ.ρ.pairs.at(ξ.index),
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.entry.key)).as-bytes,
+              φ ↦ ξ.ρ.pairs-size.eq(ξ.index).if(
+                ξ.accum,
+                ξ.ρ.rec-rebuild(
+                  ξ.hashes.contains(ξ.hash).if(
+                    ξ.accum, ξ.accum.with(ξ.auto-named-attr-at-59-18)
+                  ),
+                  ξ.index.plus(1),
+                  ξ.hashes.with(ξ.hash)
+                )
+              ),
+              auto-named-attr-at-59-18 ↦ ⟦
+                key ↦ ξ.ρ.entry.key,
+                value ↦ ξ.ρ.entry.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/range-of-ints.phi](./org/eolang/structs/range-of-ints.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        range-of-ints(start, end) ↦ ⟦
+          φ ↦ 0.eq(ξ.start).or(1.eq(ξ.start.div(ξ.start))).and(
+            0.eq(ξ.end).or(1.eq(ξ.end.div(ξ.end)))
+          ).if(
+            Φ̇.structs.range(ξ.auto-named-attr-at-42-8, ξ.end),
+            Φ̇.error("Some of the arguments are not integers")
+          ),
+          auto-named-attr-at-42-8 ↦ ⟦
+            build(num) ↦ ⟦
+              φ ↦ ξ.num,
+              next ↦ ξ.ρ.build(1.plus(ξ.φ))
+            ⟧,
+            φ ↦ ξ.build(ξ.ρ.start)
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/range.phi](./org/eolang/structs/range.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        range(start, end) ↦ ⟦
+          φ ↦ Φ̇.structs.list(
+            ξ.start.lt(ξ.end).if(
+              ξ.appended(Φ̇.tuple(Φ̇.tuple.empty, ξ.start), ξ.start.next), Φ̇.tuple.empty
+            )
+          ),
+          appended(acc, current) ↦ ⟦
+            φ ↦ ξ.current.lt(ξ.ρ.end).if(
+              ξ.ρ.appended(ξ.acc.with(ξ.current), ξ.current.next), ξ.acc
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/set.phi](./org/eolang/structs/set.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        set(lst) ↦ ⟦
+          φ ↦ ξ.initialized(
+            Φ̇.structs.map(
+              Φ̇.structs.list(ξ.lst).mapped(
+                ⟦
+                  φ ↦ Φ̇.structs.map.entry(ξ.item, Φ̇.true),
+                  item ↦ ∅
+                ⟧
+              ).origin
+            )
+          ).initialized,
+          initialized(map) ↦ ⟦
+            initialized ↦ ξ,
+            φ ↦ ξ.map.keys,
+            size ↦ ξ.map.size,
+            with(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.with(ξ.item, Φ̇.true))
+            ⟧,
+            without(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.without(ξ.item))
+            ⟧,
+            has(item) ↦ ⟦
+              φ ↦ ξ.ρ.map.has(ξ.item)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/switch.phi](./org/eolang/switch.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      switch(cases) ↦ ⟦
+        len ↦ Φ̇.dataized(ξ.cases.length).as-bytes,
+        φ ↦ ξ.len.eq(0).if(Φ̇.error("switch cases are empty"), ξ.case-at(0)),
+        case-at(index) ↦ ⟦
+          case ↦ ξ.ρ.cases.at(ξ.index),
+          φ ↦ ξ.index.eq(ξ.ρ.len).if(
+            Φ̇.true, ξ.case.at(0).if(ξ.case.at(1), ξ.ρ.case-at(ξ.index.plus(1)))
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/getenv.phi](./org/eolang/sys/getenv.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        getenv(name) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            Φ̇.sys.win32(
+              "GetEnvironmentVariable", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.name), 512)
+            ),
+            Φ̇.sys.posix("getenv", Φ̇.tuple(Φ̇.tuple.empty, ξ.name))
+          ).output
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/line-separator.phi](./org/eolang/sys/line-separator.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        line-separator ↦ ⟦
+          φ ↦ Φ̇.string(Φ̇.sys.os.is-windows.if("\r\n", "\n").as-bytes)
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/os.phi](./org/eolang/sys/os.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        os ↦ ⟦
+          φ ↦ ξ.name,
+          is-windows ↦ ⟦
+            os-name ↦ Φ̇.dataized(ξ.ρ.name).as-bytes,
+            φ ↦ ξ.os-name.size.gt(6).and(ξ.os-name.slice(0, 7).eq("Windows"))
+          ⟧,
+          is-linux ↦ Φ̇.txt.regex("/linux/i").matches(ξ.name).as-bool,
+          is-macos ↦ Φ̇.txt.regex("/mac/i").matches(ξ.name).as-bool,
+          name ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_os_name
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/posix.phi](./org/eolang/sys/posix.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        posix(name, args) ↦ ⟦
+          stdin-fileno ↦ 0,
+          stdout-fileno ↦ 1,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          inaddr-none ↦ -1,
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_posix_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          timeval(tv-sec, tv-usec) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/win32.phi](./org/eolang/sys/win32.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        win32(name, args) ↦ ⟦
+          std-input-handle ↦ -10,
+          std-output-handle ↦ -11,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          invalid-socket ↦ -1,
+          socket-error ↦ -1,
+          inaddr-none ↦ -1,
+          winsock-version-2-2 ↦ Φ̇.bytes(⟦ Δ ⤍ 02-02 ⟧),
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_win32_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          system-time(year, month, day, day-of-week, hour, minute, second, milliseconds) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/true.phi](./org/eolang/true.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      true ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧),
+        not ↦ Φ̇.false,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.left
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/try.phi](./org/eolang/try.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      try(main, catch, finally) ↦ ⟦
+        λ ⤍ Lorg_eolang_try
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/tuple.phi](./org/eolang/tuple.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      tuple(head, tail) ↦ ⟦
+        empty ↦ ⟦
+          length ↦ 0,
+          at(i) ↦ ⟦
+            φ ↦ Φ̇.error("Can't get an object from the empty tuple")
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+          ⟧
+        ⟧,
+        length ↦ ⟦
+          len ↦ Φ̇.dataized(ξ.ρ.head.length.plus(1)).as-bytes,
+          φ ↦ Φ̇.number(ξ.len)
+        ⟧,
+        at(i) ↦ ⟦
+          len ↦ ξ.ρ.length,
+          idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+          index ↦ Φ̇.dataized(0.gt(ξ.idx).if(ξ.len.plus(ξ.idx), ξ.idx)).as-bytes,
+          φ ↦ 0.gt(ξ.index).or(ξ.len.lte(ξ.index)).if(
+            Φ̇.error("Given index is out of tuple bounds"), ξ.at-fast(ξ.ρ, ξ.len)
+          ),
+          at-fast(tup, len) ↦ ⟦
+            φ ↦ ξ.len.plus(-1).gt(ξ.ρ.index).if(
+              ξ.ρ.at-fast(ξ.tup.head, ξ.len.plus(-1)), ξ.tup.tail
+            )
+          ⟧
+        ⟧,
+        with(x) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/regex.phi](./org/eolang/txt/regex.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        regex(expression) ↦ ⟦
+          φ ↦ ξ.compiled,
+          compiled ↦ ⟦
+            λ ⤍ Lorg_eolang_txt_regex_compiled
+          ⟧,
+          pattern(serialized) ↦ ⟦
+            matches(txt) ↦ ⟦
+              φ ↦ ξ.ρ.match(ξ.txt).next.exists
+            ⟧,
+            match(txt) ↦ ⟦
+              next ↦ ξ.matched-from-index(1, 0).matched,
+              matched-from-index(position, start) ↦ ⟦
+                λ ⤍ Lorg_eolang_txt_regex_pattern_match_matched_from_index
+              ⟧,
+              matched(position, start, from, to, groups) ↦ ⟦
+                matched ↦ ξ,
+                groups-count ↦ ξ.groups.length,
+                exists ↦ ξ.start.gte(0),
+                next ↦ ξ.exists.if(
+                  ξ.ρ.matched-from-index(ξ.position.plus(1), ξ.to).matched,
+                  Φ̇.error("Matched block does not exist, can't get next")
+                ),
+                text ↦ ξ.exists.if(
+                  ξ.group(0), Φ̇.error("Matched block does not exist, can't get text")
+                ),
+                group(index) ↦ ⟦
+                  φ ↦ ξ.ρ.groups.at(ξ.index)
+                ⟧
+              ⟧,
+              not-matched(position) ↦ ⟦
+                φ ↦ ξ.ρ.matched(
+                  ξ.position,
+                  -1,
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'from' position"
+                  ),
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'to' position"
+                  ),
+                  Φ̇.error("Matched block does not exist, can't get groups")
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/sprintf.phi](./org/eolang/txt/sprintf.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        sprintf(format, args) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sprintf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/sscanf.phi](./org/eolang/txt/sscanf.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        sscanf(format, read) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sscanf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/text.phi](./org/eolang/txt/text.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        text(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-alphanumeric ↦ Φ̇.txt.regex("/^[A-Za-z0-9]+$/").matches(ξ.origin),
+          is-alpha ↦ Φ̇.txt.regex("/^[a-zA-Z]+$/").matches(ξ.origin),
+          is-ascii ↦ Φ̇.txt.regex("/^[\\x00-\\x7F]*$/").matches(ξ.origin),
+          slice(start, len) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.text(ξ.ρ.origin.slice(ξ.start, ξ.len))
+          ⟧,
+          trimmed-left ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.first-non-space-index(0)).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(ξ.idx, Φ̇.number(ξ.len).minus(Φ̇.number(ξ.idx)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.index,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(1)), ξ.index
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed-right ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(0, ξ.first-non-space-index(Φ̇.number(ξ.len).plus(-1)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ -1.eq(ξ.index).if(
+                0,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(-1)), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.length).if(ξ.ρ, ξ.ρ.trimmed-left.trimmed-right)
+          ⟧,
+          joined(items) ↦ ⟦
+            delimiter ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            first ↦ ξ.items.at(0),
+            len ↦ Φ̇.dataized(ξ.items.length).as-bytes,
+            not-empty ↦ Φ̇.dataized(
+              1.eq(ξ.len).if(
+                ξ.first, ξ.first.as-bytes.concat(ξ.with-delimiter("".as-bytes, 1))
+              )
+            ).as-bytes,
+            φ ↦ ξ.ρ.ρ.text(0.eq(ξ.len).if("", Φ̇.string(ξ.not-empty))),
+            with-delimiter(acc, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.acc,
+                ξ.ρ.with-delimiter(
+                  ξ.acc.concat(ξ.ρ.delimiter.concat(ξ.ρ.items.at(ξ.index))), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          repeated(times) ↦ ⟦
+            bts ↦ Φ̇.dataized(ξ.ρ.origin.as-bytes).as-bytes,
+            amount ↦ Φ̇.dataized(ξ.times).as-bytes,
+            φ ↦ 0.gt(ξ.amount).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't repeat text %d times", Φ̇.tuple(Φ̇.tuple.empty, ξ.amount)
+                )
+              ),
+              ξ.ρ.ρ.text(
+                0.eq(ξ.amount).if("", Φ̇.string(ξ.rec-repeated(ξ.bts, 1)))
+              )
+            ),
+            rec-repeated(accum, index) ↦ ⟦
+              φ ↦ ξ.ρ.amount.eq(ξ.index).if(
+                ξ.accum, ξ.ρ.rec-repeated(ξ.accum.concat(ξ.ρ.bts), ξ.index.plus(1))
+              )
+            ⟧
+          ⟧,
+          contains(substring) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.substring)).not
+          ⟧,
+          ends-with(substring) ↦ ⟦
+            substr ↦ Φ̇.dataized(ξ.substring).as-bytes,
+            φ ↦ ξ.ρ.index-of(ξ.substr).eq(ξ.ρ.length.minus(ξ.substr.size))
+          ⟧,
+          starts-with(substring) ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.index-of(ξ.substring))
+          ⟧,
+          index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            end ↦ Φ̇.dataized(Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(-1, ξ.rec-index-of-substr(0)),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ ξ.ρ.end.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          last-index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(
+              -1,
+              ξ.rec-index-of-substr(
+                Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))
+              )
+            ),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ 0.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(-1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          up-cased ↦ ⟦
+            ascii-z ↦ Φ̇.dataized(ξ.ascii("z")).as-bytes,
+            ascii-a ↦ Φ̇.dataized(ξ.ascii("a")).as-bytes,
+            distance ↦ Φ̇.number(ξ.ascii-a).minus(ξ.ascii("A")),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-258-22
+                )
+              )
+            ),
+            ascii(char) ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(ξ.char.as-bytes).as-i64.as-number
+            ⟧,
+            auto-named-attr-at-258-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.minus(ξ.ρ.distance).as-i64.as-bytes.slice(7, 1), ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          low-cased ↦ ⟦
+            ascii-z ↦ ξ.ρ.up-cased.ascii("Z"),
+            ascii-a ↦ ξ.ρ.up-cased.ascii("A"),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-291-22
+                )
+              )
+            ),
+            auto-named-attr-at-291-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ρ.up-cased.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.plus(ξ.ρ.ρ.up-cased.distance).as-i64.as-bytes.slice(
+                    7, 1
+                  ),
+                  ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          at(i) ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+            index ↦ Φ̇.dataized(
+              0.gt(ξ.idx).if(Φ̇.number(ξ.len).plus(ξ.idx), ξ.idx)
+            ).as-bytes,
+            φ ↦ 0.gt(ξ.index).or(Φ̇.number(ξ.index).gte(ξ.len)).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Given index %d is out of text bounds", Φ̇.tuple(Φ̇.tuple.empty, ξ.index)
+                )
+              ),
+              ξ.ρ.slice(ξ.index, 1)
+            )
+          ⟧,
+          replaced(target, replacement) ↦ ⟦
+            self-as-bytes ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            reinit ↦ Φ̇.string(ξ.self-as-bytes),
+            matched ↦ ξ.target.match(ξ.reinit).next,
+            φ ↦ ξ.matched.exists.not.if(
+              Φ̇.txt.text(ξ.reinit),
+              Φ̇.txt.text(ξ.rec-replaced(ξ.matched, "", ξ.matched.start))
+            ),
+            rec-replaced(block, accum, start) ↦ ⟦
+              φ ↦ ξ.block.exists.if(
+                ξ.ρ.rec-replaced(
+                  ξ.block.next,
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.block.from.minus(ξ.start))
+                  ).concat(ξ.ρ.replacement),
+                  ξ.block.to
+                ),
+                Φ̇.string(
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.ρ.reinit.length.minus(ξ.start))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          as-number ↦ ⟦
+            scanned ↦ Φ̇.txt.sscanf("%f", ξ.ρ.origin),
+            φ ↦ ξ.scanned.length.eq(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't convert text %s to number", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin)
+                )
+              ),
+              ξ.scanned.tail
+            )
+          ⟧,
+          split(delimiter) ↦ ⟦
+            delim ↦ Φ̇.dataized(ξ.delimiter).as-bytes,
+            self-as-bytes ↦ ξ.ρ.origin.as-bytes,
+            len ↦ Φ̇.dataized(ξ.self-as-bytes.size).as-bytes,
+            φ ↦ ξ.len.eq(0).if(Φ̇.tuple.empty, ξ.rec-split(Φ̇.tuple.empty, 0, 0)),
+            rec-split(accum, start, current) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.current).if(
+                ξ.with-substr,
+                ξ.ρ.delim.eq(ξ.ρ.self-as-bytes.slice(ξ.current, 1)).if(
+                  ξ.ρ.rec-split(
+                    ξ.with-substr, ξ.current.plus(1), ξ.current.plus(1)
+                  ),
+                  ξ.ρ.rec-split(ξ.accum, ξ.start, ξ.current.plus(1))
+                )
+              ),
+              with-substr ↦ ξ.accum.with(
+                Φ̇.string(
+                  ξ.ρ.self-as-bytes.slice(ξ.start, ξ.current.minus(ξ.start))
+                )
+              )
+            ⟧
+          ⟧,
+          chained(others) ↦ ⟦
+            φ ↦ 0.eq(ξ.others.length).if(
+              ξ.ρ,
+              ξ.ρ.ρ.text(
+                Φ̇.string(
+                  Φ̇.structs.list(ξ.others).reduced(
+                    ξ.ρ.origin.as-bytes,
+                    ⟦
+                      φ ↦ ξ.accum.concat(ξ.str.as-bytes),
+                      accum ↦ ∅,
+                      str ↦ ∅
+                    ⟧
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/while.phi](./org/eolang/while.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      while(condition, body) ↦ ⟦
+        φ ↦ ξ.condition(0).as-bool.if(ξ.loop(0), Φ̇.false),
+        loop(index) ↦ ⟦
+          current ↦ ξ.ρ.body(ξ.index),
+          φ ↦ ξ.ρ.condition(ξ.index.plus(1)).as-bool.if(
+            Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.current), ξ.ρ.loop(ξ.index.plus(1))
+              )
+            ),
+            ξ.current
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
diff --git a/data/0.49.1/org/eolang/as-phi.phi b/data/0.49.1/org/eolang/as-phi.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/as-phi.phi
@@ -0,0 +1,11 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      as-phi(x) ↦ ⟦
+        λ ⤍ Lorg_eolang_as_phi
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/bytes.phi b/data/0.49.1/org/eolang/bytes.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/bytes.phi
@@ -0,0 +1,95 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      bytes(data) ↦ ⟦
+        φ ↦ ξ.data,
+        as-bytes ↦ ξ,
+        as-bool ↦ ξ.eq(Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)),
+        as-number ↦ ⟦
+          φ ↦ ξ.ρ.eq(Φ̇.nan.as-bytes).if(
+            Φ̇.nan,
+            ξ.ρ.eq(Φ̇.positive-infinity.as-bytes).if(
+              Φ̇.positive-infinity,
+              ξ.ρ.eq(Φ̇.negative-infinity.as-bytes).if(
+                Φ̇.negative-infinity,
+                ξ.ρ.size.eq(8).if(
+                  Φ̇.number(ξ.ρ),
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Can't convert non 8 length bytes to a number, bytes are %x", Φ̇.tuple.empty
+                    )
+                  )
+                )
+              )
+            )
+          )
+        ⟧,
+        eq(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_eq
+        ⟧,
+        size ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_size
+        ⟧,
+        slice(start, len) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_slice
+        ⟧,
+        as-i64 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(8).if(
+            Φ̇.i64(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 8 length bytes to i64, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i32 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(4).if(
+            Φ̇.i32(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 4 length bytes to i32, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i16 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(2).if(
+            Φ̇.i16(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 2 length bytes to i16, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        and(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_and
+        ⟧,
+        or(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_or
+        ⟧,
+        xor(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_xor
+        ⟧,
+        not ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_not
+        ⟧,
+        left(x) ↦ ⟦
+          φ ↦ ξ.ρ.right(ξ.x.neg)
+        ⟧,
+        right(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_right
+        ⟧,
+        concat(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_concat
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/cti.phi b/data/0.49.1/org/eolang/cti.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/cti.phi
@@ -0,0 +1,11 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      cti(delegate, level, message) ↦ ⟦
+        φ ↦ ξ.delegate
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/dataized.phi b/data/0.49.1/org/eolang/dataized.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/dataized.phi
@@ -0,0 +1,18 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      dataized(target) ↦ ⟦
+        φ ↦ Φ̇.try(
+          ξ.target,
+          ⟦
+            φ ↦ Φ̇.error(ξ.ex),
+            ex ↦ ∅
+          ⟧,
+          Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)
+        )
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/error.phi b/data/0.49.1/org/eolang/error.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/error.phi
@@ -0,0 +1,11 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      error(message) ↦ ⟦
+        λ ⤍ Lorg_eolang_error
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/false.phi b/data/0.49.1/org/eolang/false.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/false.phi
@@ -0,0 +1,21 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      false ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+        not ↦ Φ̇.true,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.right
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/fs/dir.phi b/data/0.49.1/org/eolang/fs/dir.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/fs/dir.phi
@@ -0,0 +1,71 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        dir(file) ↦ ⟦
+          φ ↦ ξ.file,
+          is-directory ↦ Φ̇.true,
+          made ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.mkdir), ξ.ρ))
+            ),
+            mkdir ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_made_mkdir
+            ⟧
+          ⟧,
+          walk(glob) ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_dir_walk
+          ⟧,
+          deleted ↦ ⟦
+            walked ↦ ξ.ρ.walk("**").at.ρ,
+            len ↦ Φ̇.dataized(ξ.walked.length).as-bytes,
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.rec-delete(ξ.walked, 0)), ξ.ρ
+                )
+              ),
+              ξ.ρ
+            ),
+            rec-delete(tup, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                Φ̇.true,
+                Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.tup.tail.deleted.exists),
+                    ξ.ρ.rec-delete(ξ.tup.head, ξ.index.plus(1))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          tmpfile ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.fs.file(Φ̇.string(ξ.touch.as-bytes)),
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Directory %s does not exist, can't create temporary file",
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+                )
+              )
+            ),
+            touch ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_tmpfile_touch
+            ⟧
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            φ ↦ Φ̇.error(
+              Φ̇.txt.sprintf(
+                "The file %s is a directory, can't open for I/O operations",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/fs/file.phi b/data/0.49.1/org/eolang/fs/file.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/fs/file.phi
@@ -0,0 +1,164 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        file(path) ↦ ⟦
+          φ ↦ ξ.path,
+          is-directory ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_is_directory
+          ⟧,
+          exists ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_exists
+          ⟧,
+          touched ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.touch), ξ.ρ))
+            ),
+            touch ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_touched_touch
+            ⟧
+          ⟧,
+          deleted ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.delete), ξ.ρ)), ξ.ρ
+            ),
+            delete ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_deleted_delete
+            ⟧
+          ⟧,
+          size ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_size
+          ⟧,
+          moved(target) ↦ ⟦
+            φ ↦ Φ̇.fs.file(Φ̇.string(ξ.move.as-bytes)),
+            move ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_moved_move
+            ⟧
+          ⟧,
+          as-path ↦ ⟦
+            φ ↦ Φ̇.fs.path(ξ.ρ.path).determined
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            access ↦ Φ̇.dataized(ξ.mode).as-bytes,
+            read ↦ ξ.access.eq("r"),
+            write ↦ ξ.access.eq("w"),
+            append ↦ ξ.access.eq("a"),
+            read-write ↦ ξ.access.eq("r+"),
+            write-read ↦ ξ.access.eq("w+"),
+            read-append ↦ ξ.access.eq("a+"),
+            can-read ↦ ξ.read.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).as-bool,
+            can-write ↦ ξ.write.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).or(
+              ξ.append
+            ).as-bool,
+            must-exists ↦ ξ.read.or(ξ.read-write).as-bool,
+            truncate ↦ ξ.write.or(ξ.write-read).as-bool,
+            φ ↦ ξ.can-read.not.and(ξ.can-write.not).if(
+              Φ̇.error(
+                "Wrong access mod. Only next modes are available: 'r', 'w', 'a', 'r+', 'w+', 'a+'"
+              ),
+              ξ.ρ.exists.not.if(
+                ξ.must-exists.if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "File must exist for given access mod: '%s'",
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.access)
+                    )
+                  ),
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.touched.touch), ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  )
+                ),
+                ξ.truncate.if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.deleted.delete), ξ.ρ.touched.touch
+                        ),
+                        ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  ),
+                  Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.process-file), ξ.ρ))
+                )
+              )
+            ),
+            process-file ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_open_process_file
+            ⟧,
+            file-stream ↦ ⟦
+              read(size) ↦ ⟦
+                φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+                input-block(buffer) ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ ξ.buffer,
+                  read(size) ↦ ⟦
+                    read-bytes ↦ Φ̇.dataized(ξ.ρ.ρ.read-bytes(ξ.size)).as-bytes,
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-read.not.if(
+                      ξ.auto-named-attr-at-216-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-216-18 ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't read from file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                read-bytes(size) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_read_read_bytes
+                ⟧
+              ⟧,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.output-block.write(ξ.buffer).self,
+                output-block ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ Φ̇.true,
+                  write(buffer) ↦ ⟦
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-write.not.if(
+                      ξ.auto-named-attr-at-258-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.written-bytes(ξ.buffer)), ξ.ρ.ρ.output-block
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-258-18 ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't write to file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                written-bytes(buffer) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_write_written_bytes
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/fs/path.phi b/data/0.49.1/org/eolang/fs/path.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/fs/path.phi
@@ -0,0 +1,273 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        path(uri) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win32(Φ̇.string(ξ.uri.as-bytes)), ξ.posix(Φ̇.string(ξ.uri.as-bytes))
+          ).determined,
+          joined(paths) ↦ ⟦
+            joined-path ↦ Φ̇.string(
+              Φ̇.txt.text(ξ.ρ.separator).joined(ξ.paths).as-bytes
+            ),
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.ρ.win32(ξ.joined-path), ξ.ρ.posix(ξ.joined-path)
+            ).normalized
+          ⟧,
+          separator ↦ ⟦
+            φ ↦ Φ̇.sys.os.is-windows.if(ξ.ρ.win32.separator, ξ.ρ.posix.separator)
+          ⟧,
+          posix(uri) ↦ ⟦
+            determined ↦ ξ,
+            separator ↦ "/",
+            as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+            as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+            φ ↦ ξ.uri,
+            is-absolute ↦ ⟦
+              φ ↦ ξ.ρ.uri.length.gt(0).and(
+                ξ.ρ.uri.as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+              )
+            ⟧,
+            normalized ↦ ⟦
+              uri-as-bytes ↦ ξ.ρ.uri.as-bytes,
+              is-absolute ↦ ξ.ρ.is-absolute.as-bool,
+              has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                  ξ.ρ.separator
+                )
+              ),
+              path ↦ Φ̇.txt.text(ξ.ρ.separator).joined(
+                Φ̇.structs.list(Φ̇.txt.text(ξ.ρ.uri).split(ξ.ρ.separator)).reduced(
+                  Φ̇.tuple.empty, ξ.auto-named-attr-at-102-25
+                )
+              ),
+              normalized ↦ ξ.ρ.uri.length.eq(0).if(
+                ".",
+                ξ.is-absolute.if(ξ.ρ.separator.concat(ξ.path), ξ.path).concat(
+                  ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                )
+              ).as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                ξ.normalized.eq("//").if("/", Φ̇.string(ξ.normalized))
+              ).determined,
+              auto-named-attr-at-102-25(accum, segment) ↦ ⟦
+                φ ↦ ξ.segment.eq("..").if(
+                  ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                    ξ.accum.head, ξ.ρ.is-absolute.not.if(ξ.accum.with(ξ.segment), ξ.accum)
+                  ),
+                  ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                    ξ.accum, ξ.accum.with(ξ.segment)
+                  )
+                )
+              ⟧
+            ⟧,
+            resolved(other) ↦ ⟦
+              other-as-bytes ↦ ξ.other.as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                Φ̇.string(
+                  ξ.other-as-bytes.slice(0, 1).eq(ξ.ρ.separator).if(
+                    ξ.other-as-bytes, ξ.ρ.uri.concat(ξ.ρ.separator).concat(ξ.other-as-bytes)
+                  )
+                )
+              ).normalized
+            ⟧,
+            basename ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              slice-start-idx ↦ Φ̇.dataized(
+                ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+              ).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                  ξ.pth,
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            extname ↦ ⟦
+              base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+              slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+              φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                "",
+                Φ̇.string(
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            dirname ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                  ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                )
+              )
+            ⟧
+          ⟧,
+          win32(uri) ↦ ⟦
+            separator ↦ "\\",
+            φ ↦ ξ.validated(
+              Φ̇.string(ξ.validated.separated-correctly(ξ.uri).as-bytes)
+            ).determined,
+            validated(uri) ↦ ⟦
+              determined ↦ ξ,
+              separator ↦ ξ.ρ.separator,
+              as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+              as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+              φ ↦ ξ.uri,
+              is-drive-relative(uri) ↦ ⟦
+                φ ↦ Φ̇.txt.regex("/^[a-zA-Z]:/").matches(ξ.uri).as-bool
+              ⟧,
+              is-root-relative(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+                )
+              ⟧,
+              separated-correctly(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                pth ↦ Φ̇.txt.text(Φ̇.string(ξ.uri-as-bytes)),
+                replaced ↦ Φ̇.dataized(
+                  ξ.pth.replaced(Φ̇.txt.regex("/\\//"), ξ.ρ.separator)
+                ).as-bytes,
+                φ ↦ ξ.pth.index-of(ξ.ρ.ρ.ρ.ρ.path.posix.separator).eq(-1).if(
+                  Φ̇.string(ξ.uri-as-bytes), Φ̇.string(ξ.replaced)
+                )
+              ⟧,
+              is-absolute ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.eq(0).if(
+                  Φ̇.false,
+                  ξ.ρ.is-root-relative(ξ.uri-as-bytes).or(
+                    ξ.uri-as-bytes.size.gt(1).and(
+                      ξ.ρ.is-drive-relative(ξ.uri-as-bytes)
+                    )
+                  )
+                )
+              ⟧,
+              normalized ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.uri-as-bytes).as-bool,
+                is-root-relative ↦ ξ.ρ.is-root-relative(ξ.uri-as-bytes).as-bool,
+                driveless ↦ Φ̇.dataized(
+                  ξ.is-drive-relative.if(
+                    ξ.uri-as-bytes.slice(2, ξ.uri-as-bytes.size.plus(-2)), ξ.uri-as-bytes
+                  )
+                ).as-bytes,
+                has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                    ξ.ρ.separator
+                  )
+                ),
+                path ↦ Φ̇.dataized(
+                  Φ̇.txt.text(ξ.ρ.separator).joined(
+                    Φ̇.structs.list(
+                      Φ̇.txt.text(ξ.driveless).split(ξ.ρ.separator)
+                    ).reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-356-27)
+                  )
+                ).as-bytes,
+                normalized ↦ ξ.driveless.size.eq(0).if(
+                  ".",
+                  ξ.is-drive-relative.if(
+                    ξ.driveless.slice(0, 1).eq(ξ.ρ.separator).if(
+                      ξ.ρ.uri.slice(0, 3), ξ.ρ.uri.slice(0, 2)
+                    ),
+                    ξ.is-root-relative.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  ).concat(ξ.path).concat(
+                    ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  )
+                ).as-bytes,
+                φ ↦ ξ.ρ.ρ.validated(
+                  ξ.normalized.eq("\\\\").if(
+                    ξ.ρ.separator, Φ̇.string(ξ.normalized)
+                  )
+                ).determined,
+                auto-named-attr-at-356-27(accum, segment) ↦ ⟦
+                  φ ↦ ξ.segment.eq("..").if(
+                    ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                      ξ.accum.head,
+                      ξ.ρ.is-root-relative.not.and(ξ.ρ.is-drive-relative.not).if(
+                        ξ.accum.with(ξ.segment), ξ.accum
+                      )
+                    ),
+                    ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                      ξ.accum, ξ.accum.with(ξ.segment)
+                    )
+                  )
+                ⟧
+              ⟧,
+              resolved(other) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                valid-other ↦ Φ̇.dataized(ξ.ρ.separated-correctly(ξ.other)).as-bytes,
+                other-is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.valid-other).as-bool,
+                other-is-root-relative ↦ ξ.ρ.is-root-relative(ξ.valid-other).as-bool,
+                φ ↦ ξ.ρ.ρ.validated(
+                  Φ̇.string(
+                    ξ.other-is-drive-relative.if(
+                      ξ.valid-other,
+                      ξ.other-is-root-relative.if(
+                        ξ.ρ.is-drive-relative(ξ.uri-as-bytes).if(
+                          ξ.uri-as-bytes.slice(0, 2).concat(ξ.valid-other), ξ.valid-other
+                        ),
+                        ξ.uri-as-bytes.concat(ξ.ρ.separator).concat(
+                          ξ.valid-other
+                        )
+                      )
+                    )
+                  )
+                ).normalized
+              ⟧,
+              basename ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                slice-start-idx ↦ Φ̇.dataized(
+                  ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+                ).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                    ξ.pth,
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              extname ↦ ⟦
+                base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+                slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+                φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                  "",
+                  Φ̇.string(
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              dirname ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                    ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                  )
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/fs/tmpdir.phi b/data/0.49.1/org/eolang/fs/tmpdir.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/fs/tmpdir.phi
@@ -0,0 +1,39 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        tmpdir ↦ ⟦
+          φ ↦ Φ̇.fs.dir(Φ̇.fs.file(Φ̇.string(ξ.os-tmp-dir))),
+          os-tmp-dir ↦ Φ̇.dataized(ξ.os-tmp-dir-1).as-bytes,
+          os-tmp-dir-1 ↦ ⟦
+            tmpdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TMPDIR")).as-bytes,
+            tmp ↦ Φ̇.dataized(Φ̇.sys.getenv("TMP")).as-bytes,
+            temp ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMP")).as-bytes,
+            tempdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMPDIR")).as-bytes,
+            userprofile ↦ Φ̇.dataized(Φ̇.sys.getenv("USERPROFILE")).as-bytes,
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.tmp.eq("").if(
+                ξ.temp.eq("").if(
+                  ξ.userprofile.eq("").if("C:\\Windows", ξ.userprofile), ξ.temp
+                ),
+                ξ.tmp
+              ),
+              ξ.tmpdir.eq("").if(
+                ξ.tmp.eq("").if(
+                  ξ.temp.eq("").if(
+                    ξ.tempdir.eq("").if("/tmp", ξ.tempdir), ξ.temp
+                  ),
+                  ξ.tmp
+                ),
+                ξ.tmpdir
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/go.phi b/data/0.49.1/org/eolang/go.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/go.phi
@@ -0,0 +1,34 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      go ↦ ⟦
+        id ↦ Φ̇.dataized(
+          Φ̇.malloc.of(
+            8,
+            ⟦
+              φ ↦ ξ.m.put(ξ.m.id),
+              m ↦ ∅
+            ⟧
+          )
+        ).as-bytes,
+        to(body) ↦ ⟦
+          φ ↦ Φ̇.try(ξ.body(ξ.token), ξ.auto-named-attr-at-63-9, Φ̇.true),
+          token ↦ ⟦
+            backward ↦ Φ̇.error(ξ.jump(ξ.ρ.ρ.to(ξ.ρ.body))),
+            jump(value) ↦ ⟦
+              id ↦ ξ.ρ.ρ.ρ.id
+            ⟧,
+            forward(res) ↦ ⟦
+              φ ↦ Φ̇.error(ξ.ρ.jump(ξ.res))
+            ⟧
+          ⟧,
+          auto-named-attr-at-63-9(e) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.id.eq(ξ.e.id).if(ξ.e.value, Φ̇.error(ξ.e))
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/i16.phi b/data/0.49.1/org/eolang/i16.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/i16.phi
@@ -0,0 +1,67 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i16(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i16 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32.as-i16),
+        as-i64 ↦ ξ.as-i32.as-i64,
+        as-number ↦ ξ.as-i64.as-number,
+        as-i32 ↦ ⟦
+          λ ⤍ Lorg_eolang_i16_as_i32
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lt(ξ.x.as-i16.as-i32)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lte(ξ.x.as-i16.as-i32)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gt(ξ.x.as-i16.as-i32)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gte(ξ.x.as-i16.as-i32)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.times(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.plus(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i16.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i16 ↦ ξ.x.as-i16,
+          bts ↦ ξ.ρ.as-i32.div(ξ.x-as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧),
+          φ ↦ ξ.x-as-i16.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i16 zero",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i32.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))).if(
+              ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/i32.phi b/data/0.49.1/org/eolang/i32.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/i32.phi
@@ -0,0 +1,79 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i32(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i32 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32),
+        as-number ↦ ξ.as-i64.as-number,
+        as-i64 ↦ ⟦
+          λ ⤍ Lorg_eolang_i32_as_i64
+        ⟧,
+        as-i16 ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 2).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(
+            Φ̇.i16(ξ.ρ.as-bytes.slice(2, 2)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i32 number %d to i16 because it's out of i16 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            )
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lt(ξ.x.as-i32.as-i64)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lte(ξ.x.as-i32.as-i64)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gt(ξ.x.as-i32.as-i64)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gte(ξ.x.as-i32.as-i64)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.times(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.plus(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i32.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i32 ↦ ξ.x.as-i32,
+          bts ↦ ξ.ρ.as-i64.div(ξ.x-as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧),
+          φ ↦ ξ.x-as-i32.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i32 zero", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))).if(
+              ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/i64.phi b/data/0.49.1/org/eolang/i64.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/i64.phi
@@ -0,0 +1,59 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i64(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i64 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64),
+        as-i16 ↦ ξ.as-i32.as-i16,
+        as-i32 ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 4).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(
+            Φ̇.i32(ξ.ρ.as-bytes.slice(4, 4)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i64 number %d to i32 because it's out of i32 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-number)
+              )
+            )
+          )
+        ⟧,
+        as-number ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_as_number
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.as-i64.gt(ξ.ρ.minus(ξ.ρ.ρ.i64(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(ξ.ρ.ρ.i64(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_div
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/io/bytes-as-input.phi b/data/0.49.1/org/eolang/io/bytes-as-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/io/bytes-as-input.phi
@@ -0,0 +1,36 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        bytes-as-input(bts) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.bts, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+            input-block(data, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                to-read ↦ Φ̇.dataized(ξ.size).as-bytes,
+                available ↦ Φ̇.dataized(ξ.ρ.data.size).as-bytes,
+                next ↦ Φ̇.dataized(
+                  Φ̇.number(ξ.available).gt(ξ.to-read).if(ξ.to-read, ξ.available)
+                ).as-bytes,
+                φ ↦ ξ.available.eq(0).if(
+                  ξ.ρ.ρ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.bytes(⟦ Δ ⤍ -- ⟧)),
+                  ξ.ρ.ρ.input-block(
+                    ξ.ρ.data.slice(
+                      ξ.next, Φ̇.number(ξ.available).minus(Φ̇.number(ξ.next))
+                    ).as-bytes,
+                    ξ.ρ.data.slice(0, ξ.next).as-bytes
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/io/console.phi b/data/0.49.1/org/eolang/io/console.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/io/console.phi
@@ -0,0 +1,122 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        console ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(ξ.windows-console, ξ.posix-console).platform,
+          posix-console ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.posix(
+                      "read",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.stdin-fileno), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.posix(
+                          "write",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.posix.stdout-fileno
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          windows-console ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.win32(
+                      "ReadFile",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.std-input-handle), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.win32(
+                          "WriteFile",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.win32.std-output-handle
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/io/dead-input.phi b/data/0.49.1/org/eolang/io/dead-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/io/dead-input.phi
@@ -0,0 +1,22 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        dead-input ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block,
+            input-block ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ -- ⟧),
+              read(size) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.input-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/io/dead-output.phi b/data/0.49.1/org/eolang/io/dead-output.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/io/dead-output.phi
@@ -0,0 +1,22 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        dead-output ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block,
+            output-block ↦ ⟦
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.output-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/io/input-length.phi b/data/0.49.1/org/eolang/io/input-length.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/io/input-length.phi
@@ -0,0 +1,21 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        input-length(input) ↦ ⟦
+          chunk ↦ 4096,
+          φ ↦ ξ.rec-read(ξ.input, 0),
+          rec-read(input, length) ↦ ⟦
+            read-bytes ↦ ξ.input.read(ξ.ρ.chunk).read.ρ,
+            φ ↦ ξ.read-bytes.size.eq(0).if(
+              ξ.length, ξ.ρ.rec-read(ξ.read-bytes, ξ.length.plus(ξ.read-bytes.size))
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/io/malloc-as-output.phi b/data/0.49.1/org/eolang/io/malloc-as-output.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/io/malloc-as-output.phi
@@ -0,0 +1,30 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        malloc-as-output(allocated) ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block(0).write(ξ.buffer).self,
+            output-block(offset) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty, ξ.ρ.ρ.ρ.allocated.write(ξ.ρ.offset, ξ.buffer)
+                    ),
+                    ξ.ρ.ρ.output-block(ξ.ρ.offset.plus(ξ.buffer.size))
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/io/stdin.phi b/data/0.49.1/org/eolang/io/stdin.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/io/stdin.phi
@@ -0,0 +1,45 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        stdin ↦ ⟦
+          φ ↦ ξ.all-lines,
+          all-lines ↦ ⟦
+            φ ↦ ξ.rec-read(ξ.ρ.next-line, Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.true),
+            separator ↦ Φ̇.dataized(Φ̇.sys.line-separator).as-bytes,
+            rec-read(line, buffer, first) ↦ ⟦
+              φ ↦ ξ.line.length.eq(0).if(
+                Φ̇.string(ξ.buffer),
+                ξ.ρ.rec-read(
+                  ξ.ρ.ρ.next-line,
+                  ξ.first.if(
+                    ξ.buffer.concat(ξ.line), ξ.buffer.concat(ξ.ρ.separator).concat(ξ.line)
+                  ),
+                  Φ̇.false
+                )
+              )
+            ⟧
+          ⟧,
+          next-line ↦ ⟦
+            first ↦ Φ̇.io.console.read(1).self,
+            φ ↦ ξ.first.as-bytes.size.eq(0).if(
+              "", ξ.rec-read(ξ.first, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+            ),
+            rec-read(input, buffer) ↦ ⟦
+              char ↦ ξ.input.as-bytes,
+              next ↦ ξ.input.read(1).self,
+              φ ↦ ξ.char.eq(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).or(
+                ξ.char.eq("\r").and(ξ.next.as-bytes.eq("\n")).or(ξ.char.eq("\n"))
+              ).if(
+                Φ̇.string(ξ.buffer), ξ.ρ.rec-read(ξ.next, ξ.buffer.concat(ξ.char))
+              )
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/io/stdout.phi b/data/0.49.1/org/eolang/io/stdout.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/io/stdout.phi
@@ -0,0 +1,18 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        stdout(text) ↦ ⟦
+          φ ↦ Φ̇.seq(
+            Φ̇.tuple(
+              Φ̇.tuple(Φ̇.tuple.empty, Φ̇.io.console.write(ξ.text)), Φ̇.true
+            )
+          )
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/io/tee-input.phi b/data/0.49.1/org/eolang/io/tee-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/io/tee-input.phi
@@ -0,0 +1,34 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        tee-input(input, output) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.input, ξ.ρ.output, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(
+              ξ.size
+            ).self,
+            input-block(input, output, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                read-bytes ↦ ξ.ρ.input.read(ξ.size).read.ρ,
+                written-bytes ↦ ξ.ρ.output.write(ξ.read-bytes).write.ρ,
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.written-bytes),
+                    ξ.ρ.ρ.input-block(
+                      ξ.read-bytes, ξ.written-bytes, ξ.read-bytes.as-bytes
+                    )
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/malloc.phi b/data/0.49.1/org/eolang/malloc.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/malloc.phi
@@ -0,0 +1,52 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      malloc ↦ ⟦
+        empty(scope) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.malloc.of(0, ξ.scope)
+        ⟧,
+        for(object, scope) ↦ ⟦
+          bts ↦ Φ̇.dataized(ξ.object).as-bytes,
+          φ ↦ ξ.ρ.ρ.malloc.of(ξ.bts.size, ξ.auto-named-attr-at-96-9),
+          auto-named-attr-at-96-9(m) ↦ ⟦
+            φ ↦ Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.m.write(0, ξ.ρ.bts)), ξ.ρ.scope(ξ.m)
+              )
+            )
+          ⟧
+        ⟧,
+        of(size, scope) ↦ ⟦
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_malloc_of_φ
+          ⟧,
+          allocated(id) ↦ ⟦
+            φ ↦ ξ.get,
+            get ↦ ξ.read(0, ξ.size),
+            size ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_size
+            ⟧,
+            resized(new-size) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_resized
+            ⟧,
+            read(offset, length) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_read
+            ⟧,
+            write(offset, data) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_write
+            ⟧,
+            put(object) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.write(0, ξ.object)), ξ.ρ.get
+                )
+              )
+            ⟧
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/math/angle.phi b/data/0.49.1/org/eolang/math/angle.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/math/angle.phi
@@ -0,0 +1,30 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        angle(value) ↦ ⟦
+          φ ↦ ξ.value,
+          in-degrees ↦ ξ.ρ.angle(ξ.ρ.times(180).div(Φ̇.math.pi)),
+          in-radians ↦ ξ.ρ.angle(ξ.times(Φ̇.math.pi).div(180)),
+          sin ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_sin
+          ⟧,
+          cos ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_cos
+          ⟧,
+          tan ↦ ⟦
+            cosine ↦ Φ̇.dataized(ξ.ρ.cos).as-bytes,
+            φ ↦ ξ.cosine.eq(0).if(Φ̇.nan, ξ.ρ.sin.div(ξ.cosine))
+          ⟧,
+          ctan ↦ ⟦
+            sine ↦ Φ̇.dataized(ξ.ρ.sin).as-bytes,
+            φ ↦ ξ.sine.eq(0).if(Φ̇.nan, ξ.ρ.cos.div(ξ.sine))
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/math/e.phi b/data/0.49.1/org/eolang/math/e.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/math/e.phi
@@ -0,0 +1,12 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        e ↦ 2.718281828459045,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/math/integral.phi b/data/0.49.1/org/eolang/math/integral.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/math/integral.phi
@@ -0,0 +1,66 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        integral(fun, a, b, n) ↦ ⟦
+          subsection(a, b) ↦ ⟦
+            φ ↦ ξ.b.minus(ξ.a).div(6).times(
+              ξ.ρ.fun(ξ.a).plus(
+                4.times(ξ.ρ.fun(0.5.times(ξ.a.plus(ξ.b)))).plus(ξ.ρ.fun(ξ.b))
+              )
+            )
+          ⟧,
+          φ ↦ Φ̇.malloc.of(8, ξ.auto-named-attr-at-50-11).as-number,
+          auto-named-attr-at-50-11(sum) ↦ ⟦
+            φ ↦ Φ̇.malloc.for(ξ.ρ.a, ξ.auto-named-attr-at-53-16),
+            auto-named-attr-at-53-16(left) ↦ ⟦
+              right ↦ ξ.ρ.ρ.b,
+              step ↦ ξ.right.minus(ξ.left).div(ξ.ρ.ρ.n).as-number,
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple.empty,
+                    Φ̇.while(
+                      ξ.auto-named-attr-at-59-21,
+                      ⟦
+                        φ ↦ Φ̇.true,
+                        i ↦ ∅
+                      ⟧
+                    )
+                  ),
+                  ξ.ρ.sum
+                )
+              ),
+              auto-named-attr-at-59-21(i) ↦ ⟦
+                φ ↦ ξ.ρ.left.as-number.plus(ξ.ρ.step).lt(ξ.ρ.right).if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple.empty,
+                          ξ.ρ.ρ.sum.put(
+                            ξ.ρ.ρ.sum.as-number.plus(
+                              ξ.ρ.ρ.ρ.subsection(
+                                ξ.ρ.left.as-number, ξ.ρ.left.as-number.plus(ξ.ρ.step)
+                              )
+                            )
+                          )
+                        ),
+                        ξ.ρ.left.put(ξ.ρ.left.as-number.plus(ξ.ρ.step))
+                      ),
+                      Φ̇.true
+                    )
+                  ),
+                  Φ̇.false
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/math/numbers.phi b/data/0.49.1/org/eolang/math/numbers.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/math/numbers.phi
@@ -0,0 +1,42 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        numbers(sequence) ↦ ⟦
+          φ ↦ ξ.sequence,
+          max ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get max number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.negative-infinity,
+                ⟦
+                  max ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.item.as-number.gt(ξ.max).if(ξ.item, ξ.max)
+                ⟧
+              )
+            )
+          ⟧,
+          min ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get min number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.positive-infinity,
+                ⟦
+                  min ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.min.gt(ξ.item.as-number).if(ξ.item, ξ.min)
+                ⟧
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/math/pi.phi b/data/0.49.1/org/eolang/math/pi.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/math/pi.phi
@@ -0,0 +1,12 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        pi ↦ 3.141592653589793,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/math/random.phi b/data/0.49.1/org/eolang/math/random.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/math/random.phi
@@ -0,0 +1,53 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        random(seed) ↦ ⟦
+          fixed ↦ ξ,
+          φ ↦ ξ.seed.as-number.div(
+            Φ̇.bytes(⟦ Δ ⤍ 00-20-00-00-00-00-00-00 ⟧).as-i64.as-number
+          ),
+          next ↦ ξ.ρ.random(
+            ξ.seed.times(25214903917).plus(11).as-i64.and(
+              Φ̇.bytes(⟦ Δ ⤍ 00-0F-FF-FF-FF-FF-FF-FF ⟧)
+            ).as-i64.as-number
+          ).fixed,
+          pseudo ↦ ⟦
+            const-1 ↦ 35,
+            const-2 ↦ 53,
+            const-3 ↦ 17,
+            one ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-01 ⟧),
+            φ ↦ ξ.ρ.ρ.random(ξ.time-seed),
+            time-seed ↦ ξ.time-bytes.left(ξ.const-1).and(
+              ξ.one.left(ξ.const-2).as-i64.minus(ξ.one).as-bytes
+            ).as-i64.plus(
+              ξ.time-bytes.left(ξ.const-3).and(
+                ξ.one.left(ξ.const-1).as-i64.minus(ξ.one).as-bytes
+              ).as-i64.plus(
+                ξ.time-bytes.and(
+                  ξ.one.left(ξ.const-3).as-i64.minus(ξ.one).as-bytes
+                ).as-i64
+              )
+            ).as-number,
+            time-bytes ↦ Φ̇.sys.os.is-windows.if(
+              Φ̇.sys.win32(
+                "GetSystemTime", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.system-time)
+              ).milliseconds,
+              ⟦
+                timeval ↦ Φ̇.sys.posix(
+                  "gettimeofday", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.timeval)
+                ).output,
+                φ ↦ ξ.timeval.tv-sec.times(1000).plus(
+                  ξ.timeval.tv-usec.as-i64.div(1000.as-i64).as-number
+                )
+              ⟧
+            ).as-i64.as-bytes
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/math/real.phi b/data/0.49.1/org/eolang/math/real.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/math/real.phi
@@ -0,0 +1,49 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        real(num) ↦ ⟦
+          φ ↦ ξ.num,
+          exp ↦ Φ̇.math.real(Φ̇.math.e).pow(ξ.num),
+          mod(x) ↦ ⟦
+            dividend ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            divisor ↦ Φ̇.number(ξ.x.as-bytes),
+            φ ↦ ξ.divisor.eq(0).if(
+              Φ̇.error("Can't calculate mod by zero"),
+              ξ.dividend.gt(0).if(ξ.abs-mod, ξ.abs-mod.neg)
+            ),
+            abs-mod ↦ ⟦
+              dividend-abs ↦ Φ̇.math.real(ξ.ρ.dividend).abs,
+              divisor-abs ↦ Φ̇.math.real(ξ.ρ.divisor).abs,
+              φ ↦ ξ.dividend-abs.minus(
+                ξ.divisor-abs.times(ξ.dividend-abs.div(ξ.divisor-abs).floor)
+              )
+            ⟧
+          ⟧,
+          abs ↦ ⟦
+            value ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            φ ↦ ξ.value.gte(0).if(ξ.value, ξ.value.neg)
+          ⟧,
+          pow(x) ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_pow
+          ⟧,
+          sqrt ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_sqrt
+          ⟧,
+          ln ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_ln
+          ⟧,
+          acos ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_acos
+          ⟧,
+          asin ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_asin
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/nan.phi b/data/0.49.1/org/eolang/nan.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/nan.phi
@@ -0,0 +1,44 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      nan ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F8-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ ξ,
+        is-nan ↦ Φ̇.true,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert NaN to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        times(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        plus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        div(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/negative-infinity.phi b/data/0.49.1/org/eolang/negative-infinity.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/negative-infinity.phi
@@ -0,0 +1,61 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      negative-infinity ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ FF-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.positive-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert negative infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.positive-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.positive-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.positive-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/net/socket.phi b/data/0.49.1/org/eolang/net/socket.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/net/socket.phi
@@ -0,0 +1,535 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      net ↦ ⟦
+        socket(address, port) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win-socket(ξ.address, ξ.port), ξ.posix-socket(ξ.address, ξ.port)
+          ),
+          htons(port) ↦ ⟦
+            bts ↦ ξ.port.as-i16.as-bytes,
+            φ ↦ ξ.bts.and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧)).left(8).or(
+              ξ.bts.right(8).and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧))
+            ).as-i16
+          ⟧,
+          as-input(recv) ↦ ⟦
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ ξ.ρ.ρ.ρ.recv(ξ.size).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          as-output(send) ↦ ⟦
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.send(ξ.buffer)), ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          posix-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.posix(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.af-inet), Φ̇.sys.posix.sock-stream
+                ),
+                Φ̇.sys.posix.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.posix(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.posix.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' posix syscall, reason: '%s'",
+                  Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.strerror.code)
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.posix.sockaddr-in(
+              Φ̇.sys.posix.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.posix(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.posix(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            strerror ↦ ⟦
+              φ ↦ Φ̇.sys.posix(
+                "strerror",
+                Φ̇.tuple(
+                  Φ̇.tuple.empty, Φ̇.sys.posix("errno", Φ̇.tuple.empty).code
+                )
+              )
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.posix("close", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)).code,
+              φ ↦ ξ.closed.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a posix socket '%d', reason: '%s'",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.strerror.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              φ ↦ ξ.ρ.sd.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't create a posix socket, reason: '%s'",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.strerror.code)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.scope,
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.ρ.closed-socket(ξ.ρ.sd)
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-276-10),
+              auto-named-attr-at-276-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.posix(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on posix socket '%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-300-10),
+              auto-named-attr-at-300-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.posix(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.posix(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind posix socket '%d' to '%s:%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', reason: '%s'",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.strerror.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-325-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-325-22 ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.posix(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on posix socket '%d', reason: %s",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.strerror.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          win-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.win32(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.af-inet), Φ̇.sys.win32.sock-stream
+                ),
+                Φ̇.sys.win32.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.win32(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.win32.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' win32 function call, WSA error code: %d",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.last-error.code
+                  )
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.win32.sockaddr-in(
+              Φ̇.sys.win32.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.win32(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.win32(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            last-error ↦ ⟦
+              φ ↦ Φ̇.sys.win32("WSAGetLastError", Φ̇.tuple.empty)
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.win32(
+                "closesocket", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)
+              ).code,
+              φ ↦ ξ.closed.eq(Φ̇.sys.win32.socket-error).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a win32 socket '%d', WSA error code: %d",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.last-error.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              started-up ↦ Φ̇.sys.win32(
+                "WSAStartup", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.winsock-version-2-2)
+              ).code,
+              cleaned-up ↦ Φ̇.sys.win32("WSACleanup", Φ̇.tuple.empty).code,
+              φ ↦ ξ.started-up.eq(0).not.if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't initialize Winsock via 'WSAStartup' call, WSA error code: %d",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.started-up)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.ρ.sd.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Couldn't create a win32 socket, WSA error code: %d",
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.last-error.code)
+                      )
+                    ),
+                    Φ̇.try(
+                      ξ.scope,
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.ρ.closed-socket(ξ.ρ.sd)
+                    )
+                  ),
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.cleaned-up.eq(Φ̇.sys.win32.socket-error).if(
+                    Φ̇.error("Couldn't cleanup Winsock resources"), Φ̇.true
+                  )
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-485-10),
+              auto-named-attr-at-485-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.win32(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on win32 socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-509-10),
+              auto-named-attr-at-509-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.win32(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.win32(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind win32 socket '%d' to '%s:%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', WSA error code: %d",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.last-error.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-534-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-534-22 ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.win32(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on win32 socket '%d', WSA error code: %d",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.last-error.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/number.phi b/data/0.49.1/org/eolang/number.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/number.phi
@@ -0,0 +1,74 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      number(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-number ↦ ξ,
+        neg ↦ ξ.times(-1),
+        as-i32 ↦ ξ.as-i64.as-i32,
+        as-i16 ↦ ξ.as-i32.as-i16,
+        is-nan ↦ ξ.as-bytes.eq(Φ̇.nan.as-bytes),
+        as-i64 ↦ ⟦
+          λ ⤍ Lorg_eolang_number_as_i64
+        ⟧,
+        eq(x) ↦ ⟦
+          x-as-bytes ↦ Φ̇.dataized(ξ.x).as-bytes,
+          self-as-bytes ↦ ξ.ρ.as-bytes,
+          pos-zero-as-bytes ↦ 0.as-bytes,
+          neg-zero-as-bytes ↦ -0.as-bytes,
+          φ ↦ ξ.ρ.is-nan.or(Φ̇.number(ξ.x-as-bytes).is-nan).if(
+            Φ̇.false,
+            ξ.x-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+              ξ.x-as-bytes.eq(ξ.neg-zero-as-bytes)
+            ).and(
+              ξ.self-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+                ξ.self-as-bytes.eq(ξ.neg-zero-as-bytes)
+              )
+            ).or(ξ.self-as-bytes.eq(ξ.x-as-bytes))
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.gt(ξ.ρ.minus(Φ̇.number(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(Φ̇.number(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_div
+        ⟧,
+        floor ↦ ⟦
+          λ ⤍ Lorg_eolang_number_floor
+        ⟧,
+        is-integer ↦ ⟦
+          φ ↦ ξ.ρ.is-finite.and(ξ.ρ.eq(ξ.ρ.floor))
+        ⟧,
+        is-finite ↦ ⟦
+          φ ↦ ξ.ρ.is-nan.not.and(
+            ξ.ρ.eq(Φ̇.positive-infinity).or(ξ.ρ.eq(Φ̇.negative-infinity)).not
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/positive-infinity.phi b/data/0.49.1/org/eolang/positive-infinity.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/positive-infinity.phi
@@ -0,0 +1,61 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      positive-infinity ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.negative-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert positive infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        gt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.negative-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.negative-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.negative-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/rust.phi b/data/0.49.1/org/eolang/rust.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/rust.phi
@@ -0,0 +1,11 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      rust(code, portal, params) ↦ ⟦
+        λ ⤍ Lorg_eolang_rust
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/seq.phi b/data/0.49.1/org/eolang/seq.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/seq.phi
@@ -0,0 +1,17 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      seq(steps) ↦ ⟦
+        φ ↦ ξ.steps.length.eq(0).if(Φ̇.true, ξ.loop(0)),
+        max-len ↦ Φ̇.dataized(ξ.steps.length.minus(1)).as-bytes,
+        loop(index) ↦ ⟦
+          φ ↦ ξ.index.lt(ξ.ρ.max-len).and(
+            Φ̇.dataized(ξ.ρ.steps.at(ξ.index)).as-bool.or(Φ̇.true)
+          ).if(ξ.ρ.loop(ξ.index.plus(1)), ξ.ρ.steps.at(ξ.index))
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/string.phi b/data/0.49.1/org/eolang/string.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/string.phi
@@ -0,0 +1,155 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      string(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        length ↦ ⟦
+          size ↦ ξ.ρ.as-bytes.size,
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          φ ↦ ξ.size.eq(0).if(0, ξ.rec-length(0, 0)),
+          increase-length(index, char-size, len) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-length(ξ.index.plus(ξ.char-size), ξ.len.plus(1))
+            )
+          ⟧,
+          rec-length(index, accum) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.accum,
+              ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                ξ.ρ.increase-length(ξ.index, 1, ξ.accum),
+                ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                  ξ.ρ.increase-length(ξ.index, 2, ξ.accum),
+                  ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                    ξ.ρ.increase-length(ξ.index, 3, ξ.accum),
+                    ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                      ξ.ρ.increase-length(ξ.index, 4, ξ.accum),
+                      Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Unknown byte format (%x), can't recognize character",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        slice(start, len) ↦ ⟦
+          start-bytes ↦ Φ̇.dataized(ξ.start).as-bytes,
+          len-bytes ↦ Φ̇.dataized(ξ.len).as-bytes,
+          num-start ↦ Φ̇.number(ξ.start-bytes),
+          num-len ↦ Φ̇.number(ξ.len-bytes),
+          size ↦ ξ.ρ.as-bytes.size,
+          end ↦ ξ.num-start.plus(ξ.num-len),
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          bts-start ↦ Φ̇.dataized(
+            ξ.rec-index(
+              0,
+              0,
+              ξ.num-start,
+              Φ̇.txt.sprintf(
+                "Start index (%d) is out of string bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            )
+          ).as-bytes,
+          bts-length ↦ ξ.rec-index(
+            Φ̇.number(ξ.bts-start),
+            0,
+            ξ.num-len,
+            Φ̇.txt.sprintf(
+              "Start index + length to slice (%d) is out of string bounds",
+              Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start.plus(ξ.num-len))
+            )
+          ).minus(ξ.bts-start),
+          φ ↦ ξ.num-start.lt(0).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Start index must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            ),
+            ξ.num-len.lt(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Length to slice must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-len)
+                )
+              ),
+              ξ.num-len.eq(0).if(
+                "", Φ̇.string(ξ.ρ.as-bytes.slice(ξ.bts-start, ξ.bts-length))
+              )
+            )
+          ),
+          increase(index, char-size, accum, result, cause) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-index(
+                ξ.index.plus(ξ.char-size), ξ.accum.plus(1), ξ.result, ξ.cause
+              )
+            )
+          ⟧,
+          rec-index(index, accum, result, cause) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.accum.eq(ξ.result).if(
+              ξ.index,
+              ξ.index.eq(ξ.ρ.size).if(
+                Φ̇.error(ξ.cause),
+                ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                  ξ.ρ.increase(ξ.index, 1, ξ.accum, ξ.result, ξ.cause),
+                  ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                    ξ.ρ.increase(ξ.index, 2, ξ.accum, ξ.result, ξ.cause),
+                    ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                      ξ.ρ.increase(ξ.index, 3, ξ.accum, ξ.result, ξ.cause),
+                      ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                        ξ.ρ.increase(ξ.index, 4, ξ.accum, ξ.result, ξ.cause),
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Unknown byte format (%x), can't recognize character",
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                          )
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/structs/bytes-as-array.phi b/data/0.49.1/org/eolang/structs/bytes-as-array.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/structs/bytes-as-array.phi
@@ -0,0 +1,23 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        bytes-as-array(bts) ↦ ⟦
+          bytes-size ↦ Φ̇.dataized(ξ.bts.size).as-bytes,
+          φ ↦ ξ.slice-byte(Φ̇.tuple.empty, 0),
+          slice-byte(tup, index) ↦ ⟦
+            φ ↦ ξ.index.lt(ξ.ρ.bytes-size).if(
+              ξ.ρ.slice-byte(
+                ξ.tup.with(ξ.ρ.bts.slice(ξ.index, 1)), ξ.index.plus(1)
+              ),
+              ξ.tup
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/structs/hash-code-of.phi b/data/0.49.1/org/eolang/structs/hash-code-of.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/structs/hash-code-of.phi
@@ -0,0 +1,30 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        hash-code-of(input) ↦ ⟦
+          input-as-bytes ↦ Φ̇.dataized(ξ.input.as-bytes).as-bytes,
+          size ↦ Φ̇.dataized(ξ.input-as-bytes.size).as-bytes,
+          magic-number ↦ 31.as-i64,
+          φ ↦ ξ.rec-hash-code(0, 0),
+          rec-hash-code(acc, index) ↦ ⟦
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.acc.as-number,
+              ξ.ρ.rec-hash-code(
+                ξ.ρ.magic-number.times(ξ.acc).plus(
+                  Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(
+                    ξ.ρ.input-as-bytes.slice(ξ.index, 1)
+                  ).as-i64
+                ),
+                ξ.index.plus(1)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/structs/list.phi b/data/0.49.1/org/eolang/structs/list.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/structs/list.phi
@@ -0,0 +1,194 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        list(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-empty ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.origin.length)
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.ρ.origin.with(ξ.x))
+          ⟧,
+          withi(index, item) ↦ ⟦
+            φ ↦ ξ.ρ.head(ξ.index).with(ξ.item).concat(
+              ξ.ρ.tail(ξ.ρ.origin.length.minus(ξ.index))
+            )
+          ⟧,
+          reducedi(start, func) ↦ ⟦
+            origin-len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.origin-len).if(ξ.start, ξ.rec-reduced(ξ.start, 0.as-bytes)),
+            rec-reduced(accum, index) ↦ ⟦
+              idx-as-number ↦ ξ.index.as-number,
+              next-index ↦ Φ̇.dataized(1.plus(ξ.idx-as-number)).as-bytes,
+              φ ↦ ξ.next-index.eq(ξ.ρ.origin-len).if(
+                ξ.accumulated, ξ.ρ.rec-reduced(ξ.accumulated, ξ.next-index)
+              ),
+              accumulated ↦ ξ.ρ.func(
+                ξ.accum, ξ.ρ.ρ.origin.at(ξ.idx-as-number), ξ.idx-as-number
+              )
+            ⟧
+          ⟧,
+          reduced(start, func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(ξ.start, ξ.auto-named-attr-at-83-42),
+            auto-named-attr-at-83-42(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.accum, ξ.item)
+            ⟧
+          ⟧,
+          mappedi(func) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-93-24)
+            ),
+            auto-named-attr-at-93-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.with(ξ.ρ.func(ξ.item, ξ.idx))
+            ⟧
+          ⟧,
+          mapped(func) ↦ ⟦
+            φ ↦ ξ.ρ.mappedi(ξ.auto-named-attr-at-103-30),
+            auto-named-attr-at-103-30(item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          eachi(func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-113-22),
+            auto-named-attr-at-113-22(acc, item, index) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.acc), ξ.ρ.func(ξ.item, ξ.index)
+                )
+              )
+            ⟧
+          ⟧,
+          each(func) ↦ ⟦
+            φ ↦ ξ.ρ.eachi(ξ.auto-named-attr-at-124-32),
+            auto-named-attr-at-124-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          withouti(i) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-131-24)
+            ),
+            auto-named-attr-at-131-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.i.eq(ξ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          without(element) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-142-20)
+            ),
+            auto-named-attr-at-142-20(accum, item) ↦ ⟦
+              φ ↦ ξ.ρ.element.eq(ξ.item).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          eq(other) ↦ ⟦
+            φ ↦ ξ.ρ.origin.length.eq(ξ.other.length).and(
+              ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-157-24)
+            ),
+            auto-named-attr-at-157-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.and(ξ.item.eq(ξ.ρ.other.at(ξ.idx)))
+            ⟧
+          ⟧,
+          concat(passed) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.passed).reduced(
+              ξ.ρ,
+              ⟦
+                φ ↦ ξ.accum.with(ξ.item),
+                accum ↦ ∅,
+                item ↦ ∅
+              ⟧
+            )
+          ⟧,
+          index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-177-24),
+            auto-named-attr-at-177-24(accum, item, index) ↦ ⟦
+              φ ↦ -1.eq(ξ.accum).and(ξ.item.eq(ξ.ρ.wanted)).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          last-index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-190-24),
+            auto-named-attr-at-190-24(accum, item, index) ↦ ⟦
+              φ ↦ ξ.item.eq(ξ.ρ.wanted).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          contains(element) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.element)).not
+          ⟧,
+          sorted ↦ ⟦
+            φ ↦ ξ.ρ
+          ⟧,
+          filteredi(func) ↦ ⟦
+            origin-length ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ ξ.ρ.ρ.list(ξ.rec-filtered(0.as-bytes, Φ̇.tuple.empty)),
+            rec-filtered(idx-as-bytes, accum) ↦ ⟦
+              original ↦ ξ.ρ.ρ.origin,
+              index ↦ ξ.idx-as-bytes.as-number,
+              item ↦ ξ.ρ.ρ.origin.at(ξ.index),
+              φ ↦ ξ.idx-as-bytes.eq(ξ.ρ.origin-length).if(
+                ξ.accum,
+                ξ.ρ.rec-filtered(
+                  1.plus(ξ.index).as-bytes,
+                  ξ.ρ.func(ξ.item, ξ.index).if(ξ.accum.with(ξ.item), ξ.accum)
+                )
+              )
+            ⟧
+          ⟧,
+          filtered(func) ↦ ⟦
+            φ ↦ ξ.ρ.filteredi(ξ.auto-named-attr-at-243-32),
+            auto-named-attr-at-243-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          head(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            φ ↦ Φ̇.switch(
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty,
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, 0.eq(ξ.idx)), ξ.ρ.ρ.list(Φ̇.tuple.empty)
+                      )
+                    ),
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, 0.gt(ξ.idx)), ξ.ρ.tail(ξ.index.as-number.neg)
+                    )
+                  ),
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin.length.lte(ξ.idx)), ξ.ρ
+                  )
+                ),
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.true),
+                  ξ.ρ.ρ.list(
+                    ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-264-32)
+                  )
+                )
+              )
+            ),
+            auto-named-attr-at-264-32(accum, item, index) ↦ ⟦
+              φ ↦ ξ.index.gte(ξ.ρ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          tail(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            start ↦ Φ̇.dataized(ξ.ρ.origin.length.minus(ξ.idx.as-number)).as-bytes,
+            φ ↦ 0.gt(ξ.start).if(
+              ξ.ρ,
+              ξ.ρ.ρ.list(
+                ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-280-26)
+              )
+            ),
+            auto-named-attr-at-280-26(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.idx.gte(ξ.ρ.start).if(ξ.accum.with(ξ.item), ξ.accum)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/structs/map.phi b/data/0.49.1/org/eolang/structs/map.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/structs/map.phi
@@ -0,0 +1,122 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        map(pairs) ↦ ⟦
+          φ ↦ ξ.auto-named-attr-at-37-6.initialized,
+          entry(key, value) ↦ ⟦⟧,
+          initialized(entries) ↦ ⟦
+            initialized ↦ ξ,
+            size ↦ ξ.entries.length,
+            keys ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.key,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            values ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.value,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            has(key) ↦ ⟦
+              φ ↦ ξ.ρ.found(ξ.key).exists
+            ⟧,
+            found(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.size.eq(0).if(ξ.not-found, ξ.rec-key-search(ξ.not-found, 0)),
+              rec-key-search(found, index) ↦ ⟦
+                entry ↦ ξ.ρ.ρ.entries.at(ξ.index),
+                φ ↦ ξ.found.exists.or(ξ.ρ.ρ.size.eq(ξ.index)).if(
+                  ξ.found,
+                  ξ.ρ.rec-key-search(
+                    ξ.ρ.hash.eq(ξ.entry.hash).if(
+                      ξ.auto-named-attr-at-133-54, ξ.found
+                    ),
+                    ξ.index.plus(1)
+                  )
+                ),
+                auto-named-attr-at-133-54 ↦ ⟦
+                  exists ↦ Φ̇.true,
+                  get ↦ ξ.ρ.entry.value
+                ⟧
+              ⟧,
+              not-found ↦ ⟦
+                exists ↦ Φ̇.false,
+                get ↦ Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Object by hash code %d from given key does not exists",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.hash)
+                  )
+                )
+              ⟧
+            ⟧,
+            with(key, value) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-153-50
+                ).origin.with(ξ.auto-named-attr-at-154-12)
+              ),
+              auto-named-attr-at-153-50(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧,
+              auto-named-attr-at-154-12 ↦ ⟦
+                key ↦ ξ.ρ.key,
+                value ↦ ξ.ρ.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧,
+            without(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-167-48
+                ).origin
+              ),
+              auto-named-attr-at-167-48(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧
+            ⟧
+          ⟧,
+          auto-named-attr-at-37-6 ↦ ⟦
+            pairs-size ↦ Φ̇.dataized(ξ.ρ.pairs.length).as-bytes,
+            φ ↦ ξ.ρ.initialized(
+              ξ.pairs-size.eq(0).if(
+                Φ̇.tuple.empty,
+                ξ.rec-rebuild(Φ̇.tuple.empty, 0, Φ̇.structs.list(Φ̇.tuple.empty))
+              )
+            ),
+            rec-rebuild(accum, index, hashes) ↦ ⟦
+              entry ↦ ξ.ρ.ρ.pairs.at(ξ.index),
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.entry.key)).as-bytes,
+              φ ↦ ξ.ρ.pairs-size.eq(ξ.index).if(
+                ξ.accum,
+                ξ.ρ.rec-rebuild(
+                  ξ.hashes.contains(ξ.hash).if(
+                    ξ.accum, ξ.accum.with(ξ.auto-named-attr-at-59-18)
+                  ),
+                  ξ.index.plus(1),
+                  ξ.hashes.with(ξ.hash)
+                )
+              ),
+              auto-named-attr-at-59-18 ↦ ⟦
+                key ↦ ξ.ρ.entry.key,
+                value ↦ ξ.ρ.entry.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/structs/range-of-ints.phi b/data/0.49.1/org/eolang/structs/range-of-ints.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/structs/range-of-ints.phi
@@ -0,0 +1,26 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        range-of-ints(start, end) ↦ ⟦
+          φ ↦ 0.eq(ξ.start).or(1.eq(ξ.start.div(ξ.start))).and(
+            0.eq(ξ.end).or(1.eq(ξ.end.div(ξ.end)))
+          ).if(
+            Φ̇.structs.range(ξ.auto-named-attr-at-42-8, ξ.end),
+            Φ̇.error("Some of the arguments are not integers")
+          ),
+          auto-named-attr-at-42-8 ↦ ⟦
+            build(num) ↦ ⟦
+              φ ↦ ξ.num,
+              next ↦ ξ.ρ.build(1.plus(ξ.φ))
+            ⟧,
+            φ ↦ ξ.build(ξ.ρ.start)
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/structs/range.phi b/data/0.49.1/org/eolang/structs/range.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/structs/range.phi
@@ -0,0 +1,23 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        range(start, end) ↦ ⟦
+          φ ↦ Φ̇.structs.list(
+            ξ.start.lt(ξ.end).if(
+              ξ.appended(Φ̇.tuple(Φ̇.tuple.empty, ξ.start), ξ.start.next), Φ̇.tuple.empty
+            )
+          ),
+          appended(acc, current) ↦ ⟦
+            φ ↦ ξ.current.lt(ξ.ρ.end).if(
+              ξ.ρ.appended(ξ.acc.with(ξ.current), ξ.current.next), ξ.acc
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/structs/set.phi b/data/0.49.1/org/eolang/structs/set.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/structs/set.phi
@@ -0,0 +1,37 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        set(lst) ↦ ⟦
+          φ ↦ ξ.initialized(
+            Φ̇.structs.map(
+              Φ̇.structs.list(ξ.lst).mapped(
+                ⟦
+                  φ ↦ Φ̇.structs.map.entry(ξ.item, Φ̇.true),
+                  item ↦ ∅
+                ⟧
+              ).origin
+            )
+          ).initialized,
+          initialized(map) ↦ ⟦
+            initialized ↦ ξ,
+            φ ↦ ξ.map.keys,
+            size ↦ ξ.map.size,
+            with(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.with(ξ.item, Φ̇.true))
+            ⟧,
+            without(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.without(ξ.item))
+            ⟧,
+            has(item) ↦ ⟦
+              φ ↦ ξ.ρ.map.has(ξ.item)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/switch.phi b/data/0.49.1/org/eolang/switch.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/switch.phi
@@ -0,0 +1,18 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      switch(cases) ↦ ⟦
+        len ↦ Φ̇.dataized(ξ.cases.length).as-bytes,
+        φ ↦ ξ.len.eq(0).if(Φ̇.error("switch cases are empty"), ξ.case-at(0)),
+        case-at(index) ↦ ⟦
+          case ↦ ξ.ρ.cases.at(ξ.index),
+          φ ↦ ξ.index.eq(ξ.ρ.len).if(
+            Φ̇.true, ξ.case.at(0).if(ξ.case.at(1), ξ.ρ.case-at(ξ.index.plus(1)))
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/sys/getenv.phi b/data/0.49.1/org/eolang/sys/getenv.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/sys/getenv.phi
@@ -0,0 +1,19 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        getenv(name) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            Φ̇.sys.win32(
+              "GetEnvironmentVariable", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.name), 512)
+            ),
+            Φ̇.sys.posix("getenv", Φ̇.tuple(Φ̇.tuple.empty, ξ.name))
+          ).output
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/sys/line-separator.phi b/data/0.49.1/org/eolang/sys/line-separator.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/sys/line-separator.phi
@@ -0,0 +1,14 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        line-separator ↦ ⟦
+          φ ↦ Φ̇.string(Φ̇.sys.os.is-windows.if("\r\n", "\n").as-bytes)
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/sys/os.phi b/data/0.49.1/org/eolang/sys/os.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/sys/os.phi
@@ -0,0 +1,23 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        os ↦ ⟦
+          φ ↦ ξ.name,
+          is-windows ↦ ⟦
+            os-name ↦ Φ̇.dataized(ξ.ρ.name).as-bytes,
+            φ ↦ ξ.os-name.size.gt(6).and(ξ.os-name.slice(0, 7).eq("Windows"))
+          ⟧,
+          is-linux ↦ Φ̇.txt.regex("/linux/i").matches(ξ.name).as-bool,
+          is-macos ↦ Φ̇.txt.regex("/mac/i").matches(ξ.name).as-bool,
+          name ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_os_name
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/sys/posix.phi b/data/0.49.1/org/eolang/sys/posix.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/sys/posix.phi
@@ -0,0 +1,35 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        posix(name, args) ↦ ⟦
+          stdin-fileno ↦ 0,
+          stdout-fileno ↦ 1,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          inaddr-none ↦ -1,
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_posix_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          timeval(tv-sec, tv-usec) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/sys/win32.phi b/data/0.49.1/org/eolang/sys/win32.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/sys/win32.phi
@@ -0,0 +1,38 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        win32(name, args) ↦ ⟦
+          std-input-handle ↦ -10,
+          std-output-handle ↦ -11,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          invalid-socket ↦ -1,
+          socket-error ↦ -1,
+          inaddr-none ↦ -1,
+          winsock-version-2-2 ↦ Φ̇.bytes(⟦ Δ ⤍ 02-02 ⟧),
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_win32_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          system-time(year, month, day, day-of-week, hour, minute, second, milliseconds) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/true.phi b/data/0.49.1/org/eolang/true.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/true.phi
@@ -0,0 +1,21 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      true ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧),
+        not ↦ Φ̇.false,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.left
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/try.phi b/data/0.49.1/org/eolang/try.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/try.phi
@@ -0,0 +1,11 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      try(main, catch, finally) ↦ ⟦
+        λ ⤍ Lorg_eolang_try
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/tuple.phi b/data/0.49.1/org/eolang/tuple.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/tuple.phi
@@ -0,0 +1,39 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      tuple(head, tail) ↦ ⟦
+        empty ↦ ⟦
+          length ↦ 0,
+          at(i) ↦ ⟦
+            φ ↦ Φ̇.error("Can't get an object from the empty tuple")
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+          ⟧
+        ⟧,
+        length ↦ ⟦
+          len ↦ Φ̇.dataized(ξ.ρ.head.length.plus(1)).as-bytes,
+          φ ↦ Φ̇.number(ξ.len)
+        ⟧,
+        at(i) ↦ ⟦
+          len ↦ ξ.ρ.length,
+          idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+          index ↦ Φ̇.dataized(0.gt(ξ.idx).if(ξ.len.plus(ξ.idx), ξ.idx)).as-bytes,
+          φ ↦ 0.gt(ξ.index).or(ξ.len.lte(ξ.index)).if(
+            Φ̇.error("Given index is out of tuple bounds"), ξ.at-fast(ξ.ρ, ξ.len)
+          ),
+          at-fast(tup, len) ↦ ⟦
+            φ ↦ ξ.len.plus(-1).gt(ξ.ρ.index).if(
+              ξ.ρ.at-fast(ξ.tup.head, ξ.len.plus(-1)), ξ.tup.tail
+            )
+          ⟧
+        ⟧,
+        with(x) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/txt/regex.phi b/data/0.49.1/org/eolang/txt/regex.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/txt/regex.phi
@@ -0,0 +1,56 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        regex(expression) ↦ ⟦
+          φ ↦ ξ.compiled,
+          compiled ↦ ⟦
+            λ ⤍ Lorg_eolang_txt_regex_compiled
+          ⟧,
+          pattern(serialized) ↦ ⟦
+            matches(txt) ↦ ⟦
+              φ ↦ ξ.ρ.match(ξ.txt).next.exists
+            ⟧,
+            match(txt) ↦ ⟦
+              next ↦ ξ.matched-from-index(1, 0).matched,
+              matched-from-index(position, start) ↦ ⟦
+                λ ⤍ Lorg_eolang_txt_regex_pattern_match_matched_from_index
+              ⟧,
+              matched(position, start, from, to, groups) ↦ ⟦
+                matched ↦ ξ,
+                groups-count ↦ ξ.groups.length,
+                exists ↦ ξ.start.gte(0),
+                next ↦ ξ.exists.if(
+                  ξ.ρ.matched-from-index(ξ.position.plus(1), ξ.to).matched,
+                  Φ̇.error("Matched block does not exist, can't get next")
+                ),
+                text ↦ ξ.exists.if(
+                  ξ.group(0), Φ̇.error("Matched block does not exist, can't get text")
+                ),
+                group(index) ↦ ⟦
+                  φ ↦ ξ.ρ.groups.at(ξ.index)
+                ⟧
+              ⟧,
+              not-matched(position) ↦ ⟦
+                φ ↦ ξ.ρ.matched(
+                  ξ.position,
+                  -1,
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'from' position"
+                  ),
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'to' position"
+                  ),
+                  Φ̇.error("Matched block does not exist, can't get groups")
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/txt/sprintf.phi b/data/0.49.1/org/eolang/txt/sprintf.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/txt/sprintf.phi
@@ -0,0 +1,14 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        sprintf(format, args) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sprintf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/txt/sscanf.phi b/data/0.49.1/org/eolang/txt/sscanf.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/txt/sscanf.phi
@@ -0,0 +1,14 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        sscanf(format, read) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sscanf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/txt/text.phi b/data/0.49.1/org/eolang/txt/text.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/txt/text.phi
@@ -0,0 +1,275 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        text(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-alphanumeric ↦ Φ̇.txt.regex("/^[A-Za-z0-9]+$/").matches(ξ.origin),
+          is-alpha ↦ Φ̇.txt.regex("/^[a-zA-Z]+$/").matches(ξ.origin),
+          is-ascii ↦ Φ̇.txt.regex("/^[\\x00-\\x7F]*$/").matches(ξ.origin),
+          slice(start, len) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.text(ξ.ρ.origin.slice(ξ.start, ξ.len))
+          ⟧,
+          trimmed-left ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.first-non-space-index(0)).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(ξ.idx, Φ̇.number(ξ.len).minus(Φ̇.number(ξ.idx)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.index,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(1)), ξ.index
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed-right ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(0, ξ.first-non-space-index(Φ̇.number(ξ.len).plus(-1)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ -1.eq(ξ.index).if(
+                0,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(-1)), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.length).if(ξ.ρ, ξ.ρ.trimmed-left.trimmed-right)
+          ⟧,
+          joined(items) ↦ ⟦
+            delimiter ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            first ↦ ξ.items.at(0),
+            len ↦ Φ̇.dataized(ξ.items.length).as-bytes,
+            not-empty ↦ Φ̇.dataized(
+              1.eq(ξ.len).if(
+                ξ.first, ξ.first.as-bytes.concat(ξ.with-delimiter("".as-bytes, 1))
+              )
+            ).as-bytes,
+            φ ↦ ξ.ρ.ρ.text(0.eq(ξ.len).if("", Φ̇.string(ξ.not-empty))),
+            with-delimiter(acc, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.acc,
+                ξ.ρ.with-delimiter(
+                  ξ.acc.concat(ξ.ρ.delimiter.concat(ξ.ρ.items.at(ξ.index))), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          repeated(times) ↦ ⟦
+            bts ↦ Φ̇.dataized(ξ.ρ.origin.as-bytes).as-bytes,
+            amount ↦ Φ̇.dataized(ξ.times).as-bytes,
+            φ ↦ 0.gt(ξ.amount).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't repeat text %d times", Φ̇.tuple(Φ̇.tuple.empty, ξ.amount)
+                )
+              ),
+              ξ.ρ.ρ.text(
+                0.eq(ξ.amount).if("", Φ̇.string(ξ.rec-repeated(ξ.bts, 1)))
+              )
+            ),
+            rec-repeated(accum, index) ↦ ⟦
+              φ ↦ ξ.ρ.amount.eq(ξ.index).if(
+                ξ.accum, ξ.ρ.rec-repeated(ξ.accum.concat(ξ.ρ.bts), ξ.index.plus(1))
+              )
+            ⟧
+          ⟧,
+          contains(substring) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.substring)).not
+          ⟧,
+          ends-with(substring) ↦ ⟦
+            substr ↦ Φ̇.dataized(ξ.substring).as-bytes,
+            φ ↦ ξ.ρ.index-of(ξ.substr).eq(ξ.ρ.length.minus(ξ.substr.size))
+          ⟧,
+          starts-with(substring) ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.index-of(ξ.substring))
+          ⟧,
+          index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            end ↦ Φ̇.dataized(Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(-1, ξ.rec-index-of-substr(0)),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ ξ.ρ.end.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          last-index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(
+              -1,
+              ξ.rec-index-of-substr(
+                Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))
+              )
+            ),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ 0.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(-1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          up-cased ↦ ⟦
+            ascii-z ↦ Φ̇.dataized(ξ.ascii("z")).as-bytes,
+            ascii-a ↦ Φ̇.dataized(ξ.ascii("a")).as-bytes,
+            distance ↦ Φ̇.number(ξ.ascii-a).minus(ξ.ascii("A")),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-258-22
+                )
+              )
+            ),
+            ascii(char) ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(ξ.char.as-bytes).as-i64.as-number
+            ⟧,
+            auto-named-attr-at-258-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.minus(ξ.ρ.distance).as-i64.as-bytes.slice(7, 1), ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          low-cased ↦ ⟦
+            ascii-z ↦ ξ.ρ.up-cased.ascii("Z"),
+            ascii-a ↦ ξ.ρ.up-cased.ascii("A"),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-291-22
+                )
+              )
+            ),
+            auto-named-attr-at-291-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ρ.up-cased.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.plus(ξ.ρ.ρ.up-cased.distance).as-i64.as-bytes.slice(
+                    7, 1
+                  ),
+                  ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          at(i) ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+            index ↦ Φ̇.dataized(
+              0.gt(ξ.idx).if(Φ̇.number(ξ.len).plus(ξ.idx), ξ.idx)
+            ).as-bytes,
+            φ ↦ 0.gt(ξ.index).or(Φ̇.number(ξ.index).gte(ξ.len)).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Given index %d is out of text bounds", Φ̇.tuple(Φ̇.tuple.empty, ξ.index)
+                )
+              ),
+              ξ.ρ.slice(ξ.index, 1)
+            )
+          ⟧,
+          replaced(target, replacement) ↦ ⟦
+            self-as-bytes ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            reinit ↦ Φ̇.string(ξ.self-as-bytes),
+            matched ↦ ξ.target.match(ξ.reinit).next,
+            φ ↦ ξ.matched.exists.not.if(
+              Φ̇.txt.text(ξ.reinit),
+              Φ̇.txt.text(ξ.rec-replaced(ξ.matched, "", ξ.matched.start))
+            ),
+            rec-replaced(block, accum, start) ↦ ⟦
+              φ ↦ ξ.block.exists.if(
+                ξ.ρ.rec-replaced(
+                  ξ.block.next,
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.block.from.minus(ξ.start))
+                  ).concat(ξ.ρ.replacement),
+                  ξ.block.to
+                ),
+                Φ̇.string(
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.ρ.reinit.length.minus(ξ.start))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          as-number ↦ ⟦
+            scanned ↦ Φ̇.txt.sscanf("%f", ξ.ρ.origin),
+            φ ↦ ξ.scanned.length.eq(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't convert text %s to number", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin)
+                )
+              ),
+              ξ.scanned.tail
+            )
+          ⟧,
+          split(delimiter) ↦ ⟦
+            delim ↦ Φ̇.dataized(ξ.delimiter).as-bytes,
+            self-as-bytes ↦ ξ.ρ.origin.as-bytes,
+            len ↦ Φ̇.dataized(ξ.self-as-bytes.size).as-bytes,
+            φ ↦ ξ.len.eq(0).if(Φ̇.tuple.empty, ξ.rec-split(Φ̇.tuple.empty, 0, 0)),
+            rec-split(accum, start, current) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.current).if(
+                ξ.with-substr,
+                ξ.ρ.delim.eq(ξ.ρ.self-as-bytes.slice(ξ.current, 1)).if(
+                  ξ.ρ.rec-split(
+                    ξ.with-substr, ξ.current.plus(1), ξ.current.plus(1)
+                  ),
+                  ξ.ρ.rec-split(ξ.accum, ξ.start, ξ.current.plus(1))
+                )
+              ),
+              with-substr ↦ ξ.accum.with(
+                Φ̇.string(
+                  ξ.ρ.self-as-bytes.slice(ξ.start, ξ.current.minus(ξ.start))
+                )
+              )
+            ⟧
+          ⟧,
+          chained(others) ↦ ⟦
+            φ ↦ 0.eq(ξ.others.length).if(
+              ξ.ρ,
+              ξ.ρ.ρ.text(
+                Φ̇.string(
+                  Φ̇.structs.list(ξ.others).reduced(
+                    ξ.ρ.origin.as-bytes,
+                    ⟦
+                      φ ↦ ξ.accum.concat(ξ.str.as-bytes),
+                      accum ↦ ∅,
+                      str ↦ ∅
+                    ⟧
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.1/org/eolang/while.phi b/data/0.49.1/org/eolang/while.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.1/org/eolang/while.phi
@@ -0,0 +1,22 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      while(condition, body) ↦ ⟦
+        φ ↦ ξ.condition(0).as-bool.if(ξ.loop(0), Φ̇.false),
+        loop(index) ↦ ⟦
+          current ↦ ξ.ρ.body(ξ.index),
+          φ ↦ ξ.ρ.condition(ξ.index.plus(1)).as-bool.if(
+            Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.current), ξ.ρ.loop(ξ.index.plus(1))
+              )
+            ),
+            ξ.current
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/dependencies.md b/data/0.49.3/dependencies.md
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/dependencies.md
@@ -0,0 +1,3920 @@
+# Dependencies
+
+## [org/eolang/as-phi.phi](./org/eolang/as-phi.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      as-phi(x) ↦ ⟦
+        λ ⤍ Lorg_eolang_as_phi
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/bytes.phi](./org/eolang/bytes.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      bytes(data) ↦ ⟦
+        φ ↦ ξ.data,
+        as-bytes ↦ ξ,
+        as-bool ↦ ξ.eq(Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)),
+        as-number ↦ ⟦
+          φ ↦ ξ.ρ.eq(Φ̇.nan.as-bytes).if(
+            Φ̇.nan,
+            ξ.ρ.eq(Φ̇.positive-infinity.as-bytes).if(
+              Φ̇.positive-infinity,
+              ξ.ρ.eq(Φ̇.negative-infinity.as-bytes).if(
+                Φ̇.negative-infinity,
+                ξ.ρ.size.eq(8).if(
+                  Φ̇.number(ξ.ρ),
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Can't convert non 8 length bytes to a number, bytes are %x", Φ̇.tuple.empty
+                    )
+                  )
+                )
+              )
+            )
+          )
+        ⟧,
+        eq(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_eq
+        ⟧,
+        size ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_size
+        ⟧,
+        slice(start, len) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_slice
+        ⟧,
+        as-i64 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(8).if(
+            Φ̇.i64(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 8 length bytes to i64, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i32 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(4).if(
+            Φ̇.i32(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 4 length bytes to i32, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i16 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(2).if(
+            Φ̇.i16(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 2 length bytes to i16, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        and(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_and
+        ⟧,
+        or(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_or
+        ⟧,
+        xor(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_xor
+        ⟧,
+        not ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_not
+        ⟧,
+        left(x) ↦ ⟦
+          φ ↦ ξ.ρ.right(ξ.x.neg)
+        ⟧,
+        right(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_right
+        ⟧,
+        concat(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_concat
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/cti.phi](./org/eolang/cti.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      cti(delegate, level, message) ↦ ⟦
+        φ ↦ ξ.delegate
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/dataized.phi](./org/eolang/dataized.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      dataized(target) ↦ ⟦
+        φ ↦ Φ̇.try(
+          ξ.target,
+          ⟦
+            φ ↦ Φ̇.error(ξ.ex),
+            ex ↦ ∅
+          ⟧,
+          Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)
+        )
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/error.phi](./org/eolang/error.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      error(message) ↦ ⟦
+        λ ⤍ Lorg_eolang_error
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/false.phi](./org/eolang/false.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      false ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+        not ↦ Φ̇.true,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.right
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/dir.phi](./org/eolang/fs/dir.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        dir(file) ↦ ⟦
+          φ ↦ ξ.file,
+          is-directory ↦ Φ̇.true,
+          made ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.mkdir), ξ.ρ))
+            ),
+            mkdir ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_made_mkdir
+            ⟧
+          ⟧,
+          walk(glob) ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_dir_walk
+          ⟧,
+          deleted ↦ ⟦
+            walked ↦ ξ.ρ.walk("**").at.ρ,
+            len ↦ Φ̇.dataized(ξ.walked.length).as-bytes,
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.rec-delete(ξ.walked, 0)), ξ.ρ
+                )
+              ),
+              ξ.ρ
+            ),
+            rec-delete(tup, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                Φ̇.true,
+                Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.tup.tail.deleted.exists),
+                    ξ.ρ.rec-delete(ξ.tup.head, ξ.index.plus(1))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          tmpfile ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.fs.file(Φ̇.string(ξ.touch.as-bytes)),
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Directory %s does not exist, can't create temporary file",
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+                )
+              )
+            ),
+            touch ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_tmpfile_touch
+            ⟧
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            φ ↦ Φ̇.error(
+              Φ̇.txt.sprintf(
+                "The file %s is a directory, can't open for I/O operations",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/file.phi](./org/eolang/fs/file.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        file(path) ↦ ⟦
+          φ ↦ ξ.path,
+          is-directory ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_is_directory
+          ⟧,
+          exists ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_exists
+          ⟧,
+          touched ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.touch), ξ.ρ))
+            ),
+            touch ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_touched_touch
+            ⟧
+          ⟧,
+          deleted ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.delete), ξ.ρ)), ξ.ρ
+            ),
+            delete ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_deleted_delete
+            ⟧
+          ⟧,
+          size ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_size
+          ⟧,
+          moved(target) ↦ ⟦
+            φ ↦ Φ̇.fs.file(Φ̇.string(ξ.move.as-bytes)),
+            move ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_moved_move
+            ⟧
+          ⟧,
+          as-path ↦ ⟦
+            φ ↦ Φ̇.fs.path(ξ.ρ.path).determined
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            access ↦ Φ̇.dataized(ξ.mode).as-bytes,
+            read ↦ ξ.access.eq("r"),
+            write ↦ ξ.access.eq("w"),
+            append ↦ ξ.access.eq("a"),
+            read-write ↦ ξ.access.eq("r+"),
+            write-read ↦ ξ.access.eq("w+"),
+            read-append ↦ ξ.access.eq("a+"),
+            can-read ↦ ξ.read.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).as-bool,
+            can-write ↦ ξ.write.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).or(
+              ξ.append
+            ).as-bool,
+            must-exists ↦ ξ.read.or(ξ.read-write).as-bool,
+            truncate ↦ ξ.write.or(ξ.write-read).as-bool,
+            φ ↦ ξ.can-read.not.and(ξ.can-write.not).if(
+              Φ̇.error(
+                "Wrong access mod. Only next modes are available: 'r', 'w', 'a', 'r+', 'w+', 'a+'"
+              ),
+              ξ.ρ.exists.not.if(
+                ξ.must-exists.if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "File must exist for given access mod: '%s'",
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.access)
+                    )
+                  ),
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.touched.touch), ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  )
+                ),
+                ξ.truncate.if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.deleted.delete), ξ.ρ.touched.touch
+                        ),
+                        ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  ),
+                  Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.process-file), ξ.ρ))
+                )
+              )
+            ),
+            process-file ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_open_process_file
+            ⟧,
+            file-stream ↦ ⟦
+              read(size) ↦ ⟦
+                φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+                input-block(buffer) ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ ξ.buffer,
+                  read(size) ↦ ⟦
+                    read-bytes ↦ Φ̇.dataized(ξ.ρ.ρ.read-bytes(ξ.size)).as-bytes,
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-read.not.if(
+                      ξ.auto-named-attr-at-216-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-216-18 ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't read from file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                read-bytes(size) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_read_read_bytes
+                ⟧
+              ⟧,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.output-block.write(ξ.buffer).self,
+                output-block ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ Φ̇.true,
+                  write(buffer) ↦ ⟦
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-write.not.if(
+                      ξ.auto-named-attr-at-258-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.written-bytes(ξ.buffer)), ξ.ρ.ρ.output-block
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-258-18 ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't write to file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                written-bytes(buffer) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_write_written_bytes
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/path.phi](./org/eolang/fs/path.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        path(uri) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win32(Φ̇.string(ξ.uri.as-bytes)), ξ.posix(Φ̇.string(ξ.uri.as-bytes))
+          ).determined,
+          joined(paths) ↦ ⟦
+            joined-path ↦ Φ̇.string(
+              Φ̇.txt.text(ξ.ρ.separator).joined(ξ.paths).as-bytes
+            ),
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.ρ.win32(ξ.joined-path), ξ.ρ.posix(ξ.joined-path)
+            ).normalized
+          ⟧,
+          separator ↦ ⟦
+            φ ↦ Φ̇.sys.os.is-windows.if(ξ.ρ.win32.separator, ξ.ρ.posix.separator)
+          ⟧,
+          posix(uri) ↦ ⟦
+            determined ↦ ξ,
+            separator ↦ "/",
+            as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+            as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+            φ ↦ ξ.uri,
+            is-absolute ↦ ⟦
+              φ ↦ ξ.ρ.uri.length.gt(0).and(
+                ξ.ρ.uri.as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+              )
+            ⟧,
+            normalized ↦ ⟦
+              uri-as-bytes ↦ ξ.ρ.uri.as-bytes,
+              is-absolute ↦ ξ.ρ.is-absolute.as-bool,
+              has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                  ξ.ρ.separator
+                )
+              ),
+              path ↦ Φ̇.txt.text(ξ.ρ.separator).joined(
+                Φ̇.structs.list(Φ̇.txt.text(ξ.ρ.uri).split(ξ.ρ.separator)).reduced(
+                  Φ̇.tuple.empty, ξ.auto-named-attr-at-102-25
+                )
+              ),
+              normalized ↦ ξ.ρ.uri.length.eq(0).if(
+                ".",
+                ξ.is-absolute.if(ξ.ρ.separator.concat(ξ.path), ξ.path).concat(
+                  ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                )
+              ).as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                ξ.normalized.eq("//").if("/", Φ̇.string(ξ.normalized))
+              ).determined,
+              auto-named-attr-at-102-25(accum, segment) ↦ ⟦
+                φ ↦ ξ.segment.eq("..").if(
+                  ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                    ξ.accum.head, ξ.ρ.is-absolute.not.if(ξ.accum.with(ξ.segment), ξ.accum)
+                  ),
+                  ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                    ξ.accum, ξ.accum.with(ξ.segment)
+                  )
+                )
+              ⟧
+            ⟧,
+            resolved(other) ↦ ⟦
+              other-as-bytes ↦ ξ.other.as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                Φ̇.string(
+                  ξ.other-as-bytes.slice(0, 1).eq(ξ.ρ.separator).if(
+                    ξ.other-as-bytes, ξ.ρ.uri.concat(ξ.ρ.separator).concat(ξ.other-as-bytes)
+                  )
+                )
+              ).normalized
+            ⟧,
+            basename ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              slice-start-idx ↦ Φ̇.dataized(
+                ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+              ).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                  ξ.pth,
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            extname ↦ ⟦
+              base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+              slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+              φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                "",
+                Φ̇.string(
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            dirname ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                  ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                )
+              )
+            ⟧
+          ⟧,
+          win32(uri) ↦ ⟦
+            separator ↦ "\\",
+            φ ↦ ξ.validated(
+              Φ̇.string(ξ.validated.separated-correctly(ξ.uri).as-bytes)
+            ).determined,
+            validated(uri) ↦ ⟦
+              determined ↦ ξ,
+              separator ↦ ξ.ρ.separator,
+              as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+              as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+              φ ↦ ξ.uri,
+              is-drive-relative(uri) ↦ ⟦
+                φ ↦ Φ̇.txt.regex("/^[a-zA-Z]:/").matches(ξ.uri).as-bool
+              ⟧,
+              is-root-relative(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+                )
+              ⟧,
+              separated-correctly(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                pth ↦ Φ̇.txt.text(Φ̇.string(ξ.uri-as-bytes)),
+                replaced ↦ Φ̇.dataized(
+                  ξ.pth.replaced(Φ̇.txt.regex("/\\//"), ξ.ρ.separator)
+                ).as-bytes,
+                φ ↦ ξ.pth.index-of(ξ.ρ.ρ.ρ.ρ.path.posix.separator).eq(-1).if(
+                  Φ̇.string(ξ.uri-as-bytes), Φ̇.string(ξ.replaced)
+                )
+              ⟧,
+              is-absolute ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.eq(0).if(
+                  Φ̇.false,
+                  ξ.ρ.is-root-relative(ξ.uri-as-bytes).or(
+                    ξ.uri-as-bytes.size.gt(1).and(
+                      ξ.ρ.is-drive-relative(ξ.uri-as-bytes)
+                    )
+                  )
+                )
+              ⟧,
+              normalized ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.uri-as-bytes).as-bool,
+                is-root-relative ↦ ξ.ρ.is-root-relative(ξ.uri-as-bytes).as-bool,
+                driveless ↦ Φ̇.dataized(
+                  ξ.is-drive-relative.if(
+                    ξ.uri-as-bytes.slice(2, ξ.uri-as-bytes.size.plus(-2)), ξ.uri-as-bytes
+                  )
+                ).as-bytes,
+                has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                    ξ.ρ.separator
+                  )
+                ),
+                path ↦ Φ̇.dataized(
+                  Φ̇.txt.text(ξ.ρ.separator).joined(
+                    Φ̇.structs.list(
+                      Φ̇.txt.text(ξ.driveless).split(ξ.ρ.separator)
+                    ).reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-357-27)
+                  )
+                ).as-bytes,
+                normalized ↦ ξ.driveless.size.eq(0).if(
+                  ".",
+                  ξ.is-drive-relative.if(
+                    ξ.driveless.slice(0, 1).eq(ξ.ρ.separator).if(
+                      ξ.ρ.uri.slice(0, 3), ξ.ρ.uri.slice(0, 2)
+                    ),
+                    ξ.is-root-relative.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  ).concat(ξ.path).concat(
+                    ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  )
+                ).as-bytes,
+                φ ↦ ξ.ρ.ρ.validated(
+                  ξ.normalized.eq("\\\\").if(
+                    ξ.ρ.separator, Φ̇.string(ξ.normalized)
+                  )
+                ).determined,
+                auto-named-attr-at-357-27(accum, segment) ↦ ⟦
+                  φ ↦ ξ.segment.eq("..").if(
+                    ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                      ξ.accum.head,
+                      ξ.ρ.is-root-relative.not.and(ξ.ρ.is-drive-relative.not).if(
+                        ξ.accum.with(ξ.segment), ξ.accum
+                      )
+                    ),
+                    ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                      ξ.accum, ξ.accum.with(ξ.segment)
+                    )
+                  )
+                ⟧
+              ⟧,
+              resolved(other) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                valid-other ↦ Φ̇.dataized(ξ.ρ.separated-correctly(ξ.other)).as-bytes,
+                other-is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.valid-other).as-bool,
+                other-is-root-relative ↦ ξ.ρ.is-root-relative(ξ.valid-other).as-bool,
+                φ ↦ ξ.ρ.ρ.validated(
+                  Φ̇.string(
+                    ξ.other-is-drive-relative.if(
+                      ξ.valid-other,
+                      ξ.other-is-root-relative.if(
+                        ξ.ρ.is-drive-relative(ξ.uri-as-bytes).if(
+                          ξ.uri-as-bytes.slice(0, 2).concat(ξ.valid-other), ξ.valid-other
+                        ),
+                        ξ.uri-as-bytes.concat(ξ.ρ.separator).concat(
+                          ξ.valid-other
+                        )
+                      )
+                    )
+                  )
+                ).normalized
+              ⟧,
+              basename ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                slice-start-idx ↦ Φ̇.dataized(
+                  ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+                ).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                    ξ.pth,
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              extname ↦ ⟦
+                base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+                slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+                φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                  "",
+                  Φ̇.string(
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              dirname ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                    ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                  )
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/tmpdir.phi](./org/eolang/fs/tmpdir.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        tmpdir ↦ ⟦
+          φ ↦ Φ̇.fs.dir(Φ̇.fs.file(Φ̇.string(ξ.os-tmp-dir))),
+          os-tmp-dir ↦ Φ̇.dataized(ξ.os-tmp-dir-1).as-bytes,
+          os-tmp-dir-1 ↦ ⟦
+            tmpdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TMPDIR")).as-bytes,
+            tmp ↦ Φ̇.dataized(Φ̇.sys.getenv("TMP")).as-bytes,
+            temp ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMP")).as-bytes,
+            tempdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMPDIR")).as-bytes,
+            userprofile ↦ Φ̇.dataized(Φ̇.sys.getenv("USERPROFILE")).as-bytes,
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.tmp.eq("").if(
+                ξ.temp.eq("").if(
+                  ξ.userprofile.eq("").if("C:\\Windows", ξ.userprofile), ξ.temp
+                ),
+                ξ.tmp
+              ),
+              ξ.tmpdir.eq("").if(
+                ξ.tmp.eq("").if(
+                  ξ.temp.eq("").if(
+                    ξ.tempdir.eq("").if("/tmp", ξ.tempdir), ξ.temp
+                  ),
+                  ξ.tmp
+                ),
+                ξ.tmpdir
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/go.phi](./org/eolang/go.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      go ↦ ⟦
+        id ↦ Φ̇.dataized(
+          Φ̇.malloc.of(
+            8,
+            ⟦
+              φ ↦ ξ.m.put(ξ.m.id),
+              m ↦ ∅
+            ⟧
+          )
+        ).as-bytes,
+        to(body) ↦ ⟦
+          φ ↦ Φ̇.try(ξ.body(ξ.token), ξ.auto-named-attr-at-63-9, Φ̇.true),
+          token ↦ ⟦
+            backward ↦ Φ̇.error(ξ.jump(ξ.ρ.ρ.to(ξ.ρ.body))),
+            jump(value) ↦ ⟦
+              id ↦ ξ.ρ.ρ.ρ.id
+            ⟧,
+            forward(res) ↦ ⟦
+              φ ↦ Φ̇.error(ξ.ρ.jump(ξ.res))
+            ⟧
+          ⟧,
+          auto-named-attr-at-63-9(e) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.id.eq(ξ.e.id).if(ξ.e.value, Φ̇.error(ξ.e))
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i16.phi](./org/eolang/i16.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i16(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i16 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32.as-i16),
+        as-i64 ↦ ξ.as-i32.as-i64,
+        as-number ↦ ξ.as-i64.as-number,
+        as-i32 ↦ ⟦
+          λ ⤍ Lorg_eolang_i16_as_i32
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lt(ξ.x.as-i16.as-i32)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lte(ξ.x.as-i16.as-i32)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gt(ξ.x.as-i16.as-i32)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gte(ξ.x.as-i16.as-i32)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.times(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.plus(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i16.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i16 ↦ ξ.x.as-i16,
+          bts ↦ ξ.ρ.as-i32.div(ξ.x-as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧),
+          φ ↦ ξ.x-as-i16.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i16 zero",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i32.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))).if(
+              ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i32.phi](./org/eolang/i32.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i32(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i32 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32),
+        as-number ↦ ξ.as-i64.as-number,
+        as-i64 ↦ ⟦
+          λ ⤍ Lorg_eolang_i32_as_i64
+        ⟧,
+        as-i16 ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 2).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(
+            Φ̇.i16(ξ.ρ.as-bytes.slice(2, 2)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i32 number %d to i16 because it's out of i16 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            )
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lt(ξ.x.as-i32.as-i64)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lte(ξ.x.as-i32.as-i64)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gt(ξ.x.as-i32.as-i64)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gte(ξ.x.as-i32.as-i64)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.times(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.plus(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i32.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i32 ↦ ξ.x.as-i32,
+          bts ↦ ξ.ρ.as-i64.div(ξ.x-as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧),
+          φ ↦ ξ.x-as-i32.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i32 zero", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))).if(
+              ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i64.phi](./org/eolang/i64.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i64(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i64 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64),
+        as-i16 ↦ ξ.as-i32.as-i16,
+        as-i32 ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 4).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(
+            Φ̇.i32(ξ.ρ.as-bytes.slice(4, 4)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i64 number %d to i32 because it's out of i32 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-number)
+              )
+            )
+          )
+        ⟧,
+        as-number ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_as_number
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.as-i64.gt(ξ.ρ.minus(ξ.ρ.ρ.i64(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(ξ.ρ.ρ.i64(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_div
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/bytes-as-input.phi](./org/eolang/io/bytes-as-input.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        bytes-as-input(bts) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.bts, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+            input-block(data, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                to-read ↦ Φ̇.dataized(ξ.size).as-bytes,
+                available ↦ Φ̇.dataized(ξ.ρ.data.size).as-bytes,
+                next ↦ Φ̇.dataized(
+                  Φ̇.number(ξ.available).gt(ξ.to-read).if(ξ.to-read, ξ.available)
+                ).as-bytes,
+                φ ↦ ξ.available.eq(0).if(
+                  ξ.ρ.ρ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.bytes(⟦ Δ ⤍ -- ⟧)),
+                  ξ.ρ.ρ.input-block(
+                    ξ.ρ.data.slice(
+                      ξ.next, Φ̇.number(ξ.available).minus(Φ̇.number(ξ.next))
+                    ).as-bytes,
+                    ξ.ρ.data.slice(0, ξ.next).as-bytes
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/console.phi](./org/eolang/io/console.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        console ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(ξ.windows-console, ξ.posix-console).platform,
+          posix-console ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.posix(
+                      "read",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.stdin-fileno), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.posix(
+                          "write",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.posix.stdout-fileno
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          windows-console ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.win32(
+                      "ReadFile",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.std-input-handle), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.win32(
+                          "WriteFile",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.win32.std-output-handle
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/dead-input.phi](./org/eolang/io/dead-input.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        dead-input ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block,
+            input-block ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ -- ⟧),
+              read(size) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.input-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/dead-output.phi](./org/eolang/io/dead-output.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        dead-output ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block,
+            output-block ↦ ⟦
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.output-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/input-length.phi](./org/eolang/io/input-length.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        input-length(input) ↦ ⟦
+          chunk ↦ 4096,
+          φ ↦ ξ.rec-read(ξ.input, 0),
+          rec-read(input, length) ↦ ⟦
+            read-bytes ↦ ξ.input.read(ξ.ρ.chunk).read.ρ,
+            φ ↦ ξ.read-bytes.size.eq(0).if(
+              ξ.length, ξ.ρ.rec-read(ξ.read-bytes, ξ.length.plus(ξ.read-bytes.size))
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/malloc-as-output.phi](./org/eolang/io/malloc-as-output.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        malloc-as-output(allocated) ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block(0).write(ξ.buffer).self,
+            output-block(offset) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty, ξ.ρ.ρ.ρ.allocated.write(ξ.ρ.offset, ξ.buffer)
+                    ),
+                    ξ.ρ.ρ.output-block(ξ.ρ.offset.plus(ξ.buffer.size))
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/stdin.phi](./org/eolang/io/stdin.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        stdin ↦ ⟦
+          φ ↦ ξ.all-lines,
+          all-lines ↦ ⟦
+            φ ↦ ξ.rec-read(ξ.ρ.next-line, Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.true),
+            separator ↦ Φ̇.dataized(Φ̇.sys.line-separator).as-bytes,
+            rec-read(line, buffer, first) ↦ ⟦
+              φ ↦ ξ.line.length.eq(0).if(
+                Φ̇.string(ξ.buffer),
+                ξ.ρ.rec-read(
+                  ξ.ρ.ρ.next-line,
+                  ξ.first.if(
+                    ξ.buffer.concat(ξ.line), ξ.buffer.concat(ξ.ρ.separator).concat(ξ.line)
+                  ),
+                  Φ̇.false
+                )
+              )
+            ⟧
+          ⟧,
+          next-line ↦ ⟦
+            first ↦ Φ̇.io.console.read(1).self,
+            φ ↦ ξ.first.as-bytes.size.eq(0).if(
+              "", ξ.rec-read(ξ.first, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+            ),
+            rec-read(input, buffer) ↦ ⟦
+              char ↦ ξ.input.as-bytes,
+              next ↦ ξ.input.read(1).self,
+              φ ↦ ξ.char.eq(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).or(
+                ξ.char.eq("\r").and(ξ.next.as-bytes.eq("\n")).or(ξ.char.eq("\n"))
+              ).if(
+                Φ̇.string(ξ.buffer), ξ.ρ.rec-read(ξ.next, ξ.buffer.concat(ξ.char))
+              )
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/stdout.phi](./org/eolang/io/stdout.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        stdout(text) ↦ ⟦
+          φ ↦ Φ̇.seq(
+            Φ̇.tuple(
+              Φ̇.tuple(Φ̇.tuple.empty, Φ̇.io.console.write(ξ.text)), Φ̇.true
+            )
+          )
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/tee-input.phi](./org/eolang/io/tee-input.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        tee-input(input, output) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.input, ξ.ρ.output, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(
+              ξ.size
+            ).self,
+            input-block(input, output, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                read-bytes ↦ ξ.ρ.input.read(ξ.size).read.ρ,
+                written-bytes ↦ ξ.ρ.output.write(ξ.read-bytes).write.ρ,
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.written-bytes),
+                    ξ.ρ.ρ.input-block(
+                      ξ.read-bytes, ξ.written-bytes, ξ.read-bytes.as-bytes
+                    )
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/malloc.phi](./org/eolang/malloc.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      malloc ↦ ⟦
+        empty(scope) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.malloc.of(0, ξ.scope)
+        ⟧,
+        for(object, scope) ↦ ⟦
+          bts ↦ Φ̇.dataized(ξ.object).as-bytes,
+          φ ↦ ξ.ρ.ρ.malloc.of(ξ.bts.size, ξ.auto-named-attr-at-96-9),
+          auto-named-attr-at-96-9(m) ↦ ⟦
+            φ ↦ Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.m.write(0, ξ.ρ.bts)), ξ.ρ.scope(ξ.m)
+              )
+            )
+          ⟧
+        ⟧,
+        of(size, scope) ↦ ⟦
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_malloc_of_φ
+          ⟧,
+          allocated(id) ↦ ⟦
+            φ ↦ ξ.get,
+            get ↦ ξ.read(0, ξ.size),
+            size ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_size
+            ⟧,
+            resized(new-size) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_resized
+            ⟧,
+            copy(source, target, length) ↦ ⟦
+              φ ↦ ξ.ρ.write(ξ.target, ξ.ρ.read(ξ.source, ξ.length))
+            ⟧,
+            read(offset, length) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_read
+            ⟧,
+            write(offset, data) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_write
+            ⟧,
+            put(object) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.write(0, ξ.object)), ξ.ρ.get
+                )
+              )
+            ⟧
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/angle.phi](./org/eolang/math/angle.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        angle(value) ↦ ⟦
+          φ ↦ ξ.value,
+          in-degrees ↦ ξ.ρ.angle(ξ.ρ.times(180).div(Φ̇.math.pi)),
+          in-radians ↦ ξ.ρ.angle(ξ.times(Φ̇.math.pi).div(180)),
+          sin ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_sin
+          ⟧,
+          cos ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_cos
+          ⟧,
+          tan ↦ ⟦
+            cosine ↦ Φ̇.dataized(ξ.ρ.cos).as-bytes,
+            φ ↦ ξ.cosine.eq(0).if(Φ̇.nan, ξ.ρ.sin.div(ξ.cosine))
+          ⟧,
+          ctan ↦ ⟦
+            sine ↦ Φ̇.dataized(ξ.ρ.sin).as-bytes,
+            φ ↦ ξ.sine.eq(0).if(Φ̇.nan, ξ.ρ.cos.div(ξ.sine))
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/e.phi](./org/eolang/math/e.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        e ↦ 2.718281828459045,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/integral.phi](./org/eolang/math/integral.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        integral(fun, a, b, n) ↦ ⟦
+          subsection(a, b) ↦ ⟦
+            φ ↦ ξ.b.minus(ξ.a).div(6).times(
+              ξ.ρ.fun(ξ.a).plus(
+                4.times(ξ.ρ.fun(0.5.times(ξ.a.plus(ξ.b)))).plus(ξ.ρ.fun(ξ.b))
+              )
+            )
+          ⟧,
+          φ ↦ Φ̇.malloc.of(8, ξ.auto-named-attr-at-50-11).as-number,
+          auto-named-attr-at-50-11(sum) ↦ ⟦
+            φ ↦ Φ̇.malloc.for(ξ.ρ.a, ξ.auto-named-attr-at-53-16),
+            auto-named-attr-at-53-16(left) ↦ ⟦
+              right ↦ ξ.ρ.ρ.b,
+              step ↦ ξ.right.minus(ξ.left).div(ξ.ρ.ρ.n).as-number,
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple.empty,
+                    Φ̇.while(
+                      ξ.auto-named-attr-at-59-21,
+                      ⟦
+                        φ ↦ Φ̇.true,
+                        i ↦ ∅
+                      ⟧
+                    )
+                  ),
+                  ξ.ρ.sum
+                )
+              ),
+              auto-named-attr-at-59-21(i) ↦ ⟦
+                φ ↦ ξ.ρ.left.as-number.plus(ξ.ρ.step).lt(ξ.ρ.right).if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple.empty,
+                          ξ.ρ.ρ.sum.put(
+                            ξ.ρ.ρ.sum.as-number.plus(
+                              ξ.ρ.ρ.ρ.subsection(
+                                ξ.ρ.left.as-number, ξ.ρ.left.as-number.plus(ξ.ρ.step)
+                              )
+                            )
+                          )
+                        ),
+                        ξ.ρ.left.put(ξ.ρ.left.as-number.plus(ξ.ρ.step))
+                      ),
+                      Φ̇.true
+                    )
+                  ),
+                  Φ̇.false
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/numbers.phi](./org/eolang/math/numbers.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        numbers(sequence) ↦ ⟦
+          φ ↦ ξ.sequence,
+          max ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get max number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.negative-infinity,
+                ⟦
+                  max ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.item.as-number.gt(ξ.max).if(ξ.item, ξ.max)
+                ⟧
+              )
+            )
+          ⟧,
+          min ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get min number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.positive-infinity,
+                ⟦
+                  min ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.min.gt(ξ.item.as-number).if(ξ.item, ξ.min)
+                ⟧
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/pi.phi](./org/eolang/math/pi.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        pi ↦ 3.141592653589793,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/random.phi](./org/eolang/math/random.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        random(seed) ↦ ⟦
+          fixed ↦ ξ,
+          φ ↦ ξ.seed.as-number.div(
+            Φ̇.bytes(⟦ Δ ⤍ 00-20-00-00-00-00-00-00 ⟧).as-i64.as-number
+          ),
+          next ↦ ξ.ρ.random(
+            ξ.seed.times(25214903917).plus(11).as-i64.and(
+              Φ̇.bytes(⟦ Δ ⤍ 00-0F-FF-FF-FF-FF-FF-FF ⟧)
+            ).as-i64.as-number
+          ).fixed,
+          pseudo ↦ ⟦
+            const-1 ↦ 35,
+            const-2 ↦ 53,
+            const-3 ↦ 17,
+            one ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-01 ⟧),
+            φ ↦ ξ.ρ.ρ.random(ξ.time-seed),
+            time-seed ↦ ξ.time-bytes.left(ξ.const-1).and(
+              ξ.one.left(ξ.const-2).as-i64.minus(ξ.one).as-bytes
+            ).as-i64.plus(
+              ξ.time-bytes.left(ξ.const-3).and(
+                ξ.one.left(ξ.const-1).as-i64.minus(ξ.one).as-bytes
+              ).as-i64.plus(
+                ξ.time-bytes.and(
+                  ξ.one.left(ξ.const-3).as-i64.minus(ξ.one).as-bytes
+                ).as-i64
+              )
+            ).as-number,
+            time-bytes ↦ Φ̇.sys.os.is-windows.if(
+              Φ̇.sys.win32(
+                "GetSystemTime", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.system-time)
+              ).milliseconds,
+              ⟦
+                timeval ↦ Φ̇.sys.posix(
+                  "gettimeofday", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.timeval)
+                ).output,
+                φ ↦ ξ.timeval.tv-sec.times(1000).plus(
+                  ξ.timeval.tv-usec.as-i64.div(1000.as-i64).as-number
+                )
+              ⟧
+            ).as-i64.as-bytes
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/real.phi](./org/eolang/math/real.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        real(num) ↦ ⟦
+          φ ↦ ξ.num,
+          exp ↦ Φ̇.math.real(Φ̇.math.e).pow(ξ.num),
+          mod(x) ↦ ⟦
+            dividend ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            divisor ↦ Φ̇.number(ξ.x.as-bytes),
+            φ ↦ ξ.divisor.eq(0).if(
+              Φ̇.error("Can't calculate mod by zero"),
+              ξ.dividend.gt(0).if(ξ.abs-mod, ξ.abs-mod.neg)
+            ),
+            abs-mod ↦ ⟦
+              dividend-abs ↦ Φ̇.math.real(ξ.ρ.dividend).abs,
+              divisor-abs ↦ Φ̇.math.real(ξ.ρ.divisor).abs,
+              φ ↦ ξ.dividend-abs.minus(
+                ξ.divisor-abs.times(ξ.dividend-abs.div(ξ.divisor-abs).floor)
+              )
+            ⟧
+          ⟧,
+          abs ↦ ⟦
+            value ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            φ ↦ ξ.value.gte(0).if(ξ.value, ξ.value.neg)
+          ⟧,
+          pow(x) ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_pow
+          ⟧,
+          sqrt ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_sqrt
+          ⟧,
+          ln ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_ln
+          ⟧,
+          acos ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_acos
+          ⟧,
+          asin ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_asin
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/nan.phi](./org/eolang/nan.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      nan ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F8-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ ξ,
+        is-nan ↦ Φ̇.true,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert NaN to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        times(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        plus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        div(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/negative-infinity.phi](./org/eolang/negative-infinity.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      negative-infinity ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ FF-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.positive-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert negative infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.positive-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.positive-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.positive-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/net/socket.phi](./org/eolang/net/socket.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      net ↦ ⟦
+        socket(address, port) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win-socket(ξ.address, ξ.port), ξ.posix-socket(ξ.address, ξ.port)
+          ),
+          htons(port) ↦ ⟦
+            bts ↦ ξ.port.as-i16.as-bytes,
+            φ ↦ ξ.bts.and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧)).left(8).or(
+              ξ.bts.right(8).and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧))
+            ).as-i16
+          ⟧,
+          as-input(recv) ↦ ⟦
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ ξ.ρ.ρ.ρ.recv(ξ.size).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          as-output(send) ↦ ⟦
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.send(ξ.buffer)), ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          posix-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.posix(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.af-inet), Φ̇.sys.posix.sock-stream
+                ),
+                Φ̇.sys.posix.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.posix(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.posix.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' posix syscall, reason: '%s'",
+                  Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.strerror.code)
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.posix.sockaddr-in(
+              Φ̇.sys.posix.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.posix(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.posix(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            strerror ↦ ⟦
+              φ ↦ Φ̇.sys.posix(
+                "strerror",
+                Φ̇.tuple(
+                  Φ̇.tuple.empty, Φ̇.sys.posix("errno", Φ̇.tuple.empty).code
+                )
+              )
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.posix("close", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)).code,
+              φ ↦ ξ.closed.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a posix socket '%d', reason: '%s'",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.strerror.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              φ ↦ ξ.ρ.sd.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't create a posix socket, reason: '%s'",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.strerror.code)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.scope,
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.ρ.closed-socket(ξ.ρ.sd)
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-276-10),
+              auto-named-attr-at-276-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.posix(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on posix socket '%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-300-10),
+              auto-named-attr-at-300-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.posix(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.posix(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind posix socket '%d' to '%s:%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', reason: '%s'",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.strerror.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-325-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-325-22 ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.posix(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on posix socket '%d', reason: %s",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.strerror.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          win-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.win32(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.af-inet), Φ̇.sys.win32.sock-stream
+                ),
+                Φ̇.sys.win32.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.win32(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.win32.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' win32 function call, WSA error code: %d",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.last-error.code
+                  )
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.win32.sockaddr-in(
+              Φ̇.sys.win32.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.win32(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.win32(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            last-error ↦ ⟦
+              φ ↦ Φ̇.sys.win32("WSAGetLastError", Φ̇.tuple.empty)
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.win32(
+                "closesocket", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)
+              ).code,
+              φ ↦ ξ.closed.eq(Φ̇.sys.win32.socket-error).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a win32 socket '%d', WSA error code: %d",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.last-error.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              started-up ↦ Φ̇.sys.win32(
+                "WSAStartup", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.winsock-version-2-2)
+              ).code,
+              cleaned-up ↦ Φ̇.sys.win32("WSACleanup", Φ̇.tuple.empty).code,
+              φ ↦ ξ.started-up.eq(0).not.if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't initialize Winsock via 'WSAStartup' call, WSA error code: %d",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.started-up)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.ρ.sd.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Couldn't create a win32 socket, WSA error code: %d",
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.last-error.code)
+                      )
+                    ),
+                    Φ̇.try(
+                      ξ.scope,
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.ρ.closed-socket(ξ.ρ.sd)
+                    )
+                  ),
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.cleaned-up.eq(Φ̇.sys.win32.socket-error).if(
+                    Φ̇.error("Couldn't cleanup Winsock resources"), Φ̇.true
+                  )
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-485-10),
+              auto-named-attr-at-485-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.win32(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on win32 socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-509-10),
+              auto-named-attr-at-509-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.win32(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.win32(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind win32 socket '%d' to '%s:%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', WSA error code: %d",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.last-error.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-534-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-534-22 ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.win32(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on win32 socket '%d', WSA error code: %d",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.last-error.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/number.phi](./org/eolang/number.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      number(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-number ↦ ξ,
+        neg ↦ ξ.times(-1),
+        as-i32 ↦ ξ.as-i64.as-i32,
+        as-i16 ↦ ξ.as-i32.as-i16,
+        is-nan ↦ ξ.as-bytes.eq(Φ̇.nan.as-bytes),
+        as-i64 ↦ ⟦
+          λ ⤍ Lorg_eolang_number_as_i64
+        ⟧,
+        eq(x) ↦ ⟦
+          x-as-bytes ↦ Φ̇.dataized(ξ.x).as-bytes,
+          self-as-bytes ↦ ξ.ρ.as-bytes,
+          pos-zero-as-bytes ↦ 0.as-bytes,
+          neg-zero-as-bytes ↦ -0.as-bytes,
+          φ ↦ ξ.ρ.is-nan.or(Φ̇.number(ξ.x-as-bytes).is-nan).if(
+            Φ̇.false,
+            ξ.x-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+              ξ.x-as-bytes.eq(ξ.neg-zero-as-bytes)
+            ).and(
+              ξ.self-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+                ξ.self-as-bytes.eq(ξ.neg-zero-as-bytes)
+              )
+            ).or(ξ.self-as-bytes.eq(ξ.x-as-bytes))
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.gt(ξ.ρ.minus(Φ̇.number(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(Φ̇.number(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_div
+        ⟧,
+        floor ↦ ⟦
+          λ ⤍ Lorg_eolang_number_floor
+        ⟧,
+        is-integer ↦ ⟦
+          φ ↦ ξ.ρ.is-finite.and(ξ.ρ.eq(ξ.ρ.floor))
+        ⟧,
+        is-finite ↦ ⟦
+          φ ↦ ξ.ρ.is-nan.not.and(
+            ξ.ρ.eq(Φ̇.positive-infinity).or(ξ.ρ.eq(Φ̇.negative-infinity)).not
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/positive-infinity.phi](./org/eolang/positive-infinity.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      positive-infinity ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.negative-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert positive infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        gt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.negative-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.negative-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.negative-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/seq.phi](./org/eolang/seq.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      seq(steps) ↦ ⟦
+        φ ↦ ξ.steps.length.eq(0).if(Φ̇.true, ξ.loop(0)),
+        max-len ↦ Φ̇.dataized(ξ.steps.length.minus(1)).as-bytes,
+        loop(index) ↦ ⟦
+          φ ↦ ξ.index.lt(ξ.ρ.max-len).and(
+            Φ̇.dataized(ξ.ρ.steps.at(ξ.index)).as-bool.or(Φ̇.true)
+          ).if(ξ.ρ.loop(ξ.index.plus(1)), ξ.ρ.steps.at(ξ.index))
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/string.phi](./org/eolang/string.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      string(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        length ↦ ⟦
+          size ↦ ξ.ρ.as-bytes.size,
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          φ ↦ ξ.size.eq(0).if(0, ξ.rec-length(0, 0)),
+          increase-length(index, char-size, len) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-length(ξ.index.plus(ξ.char-size), ξ.len.plus(1))
+            )
+          ⟧,
+          rec-length(index, accum) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.accum,
+              ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                ξ.ρ.increase-length(ξ.index, 1, ξ.accum),
+                ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                  ξ.ρ.increase-length(ξ.index, 2, ξ.accum),
+                  ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                    ξ.ρ.increase-length(ξ.index, 3, ξ.accum),
+                    ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                      ξ.ρ.increase-length(ξ.index, 4, ξ.accum),
+                      Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Unknown byte format (%x), can't recognize character",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        slice(start, len) ↦ ⟦
+          start-bytes ↦ Φ̇.dataized(ξ.start).as-bytes,
+          len-bytes ↦ Φ̇.dataized(ξ.len).as-bytes,
+          num-start ↦ Φ̇.number(ξ.start-bytes),
+          num-len ↦ Φ̇.number(ξ.len-bytes),
+          size ↦ ξ.ρ.as-bytes.size,
+          end ↦ ξ.num-start.plus(ξ.num-len),
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          bts-start ↦ Φ̇.dataized(
+            ξ.rec-index(
+              0,
+              0,
+              ξ.num-start,
+              Φ̇.txt.sprintf(
+                "Start index (%d) is out of string bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            )
+          ).as-bytes,
+          bts-length ↦ ξ.rec-index(
+            Φ̇.number(ξ.bts-start),
+            0,
+            ξ.num-len,
+            Φ̇.txt.sprintf(
+              "Start index + length to slice (%d) is out of string bounds",
+              Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start.plus(ξ.num-len))
+            )
+          ).minus(ξ.bts-start),
+          φ ↦ ξ.num-start.lt(0).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Start index must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            ),
+            ξ.num-len.lt(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Length to slice must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-len)
+                )
+              ),
+              ξ.num-len.eq(0).if(
+                "", Φ̇.string(ξ.ρ.as-bytes.slice(ξ.bts-start, ξ.bts-length))
+              )
+            )
+          ),
+          increase(index, char-size, accum, result, cause) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-index(
+                ξ.index.plus(ξ.char-size), ξ.accum.plus(1), ξ.result, ξ.cause
+              )
+            )
+          ⟧,
+          rec-index(index, accum, result, cause) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.accum.eq(ξ.result).if(
+              ξ.index,
+              ξ.index.eq(ξ.ρ.size).if(
+                Φ̇.error(ξ.cause),
+                ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                  ξ.ρ.increase(ξ.index, 1, ξ.accum, ξ.result, ξ.cause),
+                  ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                    ξ.ρ.increase(ξ.index, 2, ξ.accum, ξ.result, ξ.cause),
+                    ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                      ξ.ρ.increase(ξ.index, 3, ξ.accum, ξ.result, ξ.cause),
+                      ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                        ξ.ρ.increase(ξ.index, 4, ξ.accum, ξ.result, ξ.cause),
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Unknown byte format (%x), can't recognize character",
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                          )
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/bytes-as-array.phi](./org/eolang/structs/bytes-as-array.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        bytes-as-array(bts) ↦ ⟦
+          bytes-size ↦ Φ̇.dataized(ξ.bts.size).as-bytes,
+          φ ↦ ξ.slice-byte(Φ̇.tuple.empty, 0),
+          slice-byte(tup, index) ↦ ⟦
+            φ ↦ ξ.index.lt(ξ.ρ.bytes-size).if(
+              ξ.ρ.slice-byte(
+                ξ.tup.with(ξ.ρ.bts.slice(ξ.index, 1)), ξ.index.plus(1)
+              ),
+              ξ.tup
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/hash-code-of.phi](./org/eolang/structs/hash-code-of.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        hash-code-of(input) ↦ ⟦
+          input-as-bytes ↦ Φ̇.dataized(ξ.input.as-bytes).as-bytes,
+          size ↦ Φ̇.dataized(ξ.input-as-bytes.size).as-bytes,
+          magic-number ↦ 31.as-i64,
+          φ ↦ ξ.rec-hash-code(0, 0),
+          rec-hash-code(acc, index) ↦ ⟦
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.acc.as-number,
+              ξ.ρ.rec-hash-code(
+                ξ.ρ.magic-number.times(ξ.acc).plus(
+                  Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(
+                    ξ.ρ.input-as-bytes.slice(ξ.index, 1)
+                  ).as-i64
+                ),
+                ξ.index.plus(1)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/list.phi](./org/eolang/structs/list.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        list(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-empty ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.origin.length)
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.ρ.origin.with(ξ.x))
+          ⟧,
+          withi(index, item) ↦ ⟦
+            φ ↦ ξ.ρ.head(ξ.index).with(ξ.item).concat(
+              ξ.ρ.tail(ξ.ρ.origin.length.minus(ξ.index))
+            )
+          ⟧,
+          reducedi(start, func) ↦ ⟦
+            origin-len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.origin-len).if(ξ.start, ξ.rec-reduced(ξ.start, 0.as-bytes)),
+            rec-reduced(accum, index) ↦ ⟦
+              idx-as-number ↦ ξ.index.as-number,
+              next-index ↦ Φ̇.dataized(1.plus(ξ.idx-as-number)).as-bytes,
+              φ ↦ ξ.next-index.eq(ξ.ρ.origin-len).if(
+                ξ.accumulated, ξ.ρ.rec-reduced(ξ.accumulated, ξ.next-index)
+              ),
+              accumulated ↦ ξ.ρ.func(
+                ξ.accum, ξ.ρ.ρ.origin.at(ξ.idx-as-number), ξ.idx-as-number
+              )
+            ⟧
+          ⟧,
+          reduced(start, func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(ξ.start, ξ.auto-named-attr-at-83-42),
+            auto-named-attr-at-83-42(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.accum, ξ.item)
+            ⟧
+          ⟧,
+          mappedi(func) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-93-24)
+            ),
+            auto-named-attr-at-93-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.with(ξ.ρ.func(ξ.item, ξ.idx))
+            ⟧
+          ⟧,
+          mapped(func) ↦ ⟦
+            φ ↦ ξ.ρ.mappedi(ξ.auto-named-attr-at-103-30),
+            auto-named-attr-at-103-30(item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          eachi(func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-113-22),
+            auto-named-attr-at-113-22(acc, item, index) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.acc), ξ.ρ.func(ξ.item, ξ.index)
+                )
+              )
+            ⟧
+          ⟧,
+          each(func) ↦ ⟦
+            φ ↦ ξ.ρ.eachi(ξ.auto-named-attr-at-124-32),
+            auto-named-attr-at-124-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          withouti(i) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-131-24)
+            ),
+            auto-named-attr-at-131-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.i.eq(ξ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          without(element) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-142-20)
+            ),
+            auto-named-attr-at-142-20(accum, item) ↦ ⟦
+              φ ↦ ξ.ρ.element.eq(ξ.item).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          eq(other) ↦ ⟦
+            φ ↦ ξ.ρ.origin.length.eq(ξ.other.length).and(
+              ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-157-24)
+            ),
+            auto-named-attr-at-157-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.and(ξ.item.eq(ξ.ρ.other.at(ξ.idx)))
+            ⟧
+          ⟧,
+          concat(passed) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.passed).reduced(
+              ξ.ρ,
+              ⟦
+                φ ↦ ξ.accum.with(ξ.item),
+                accum ↦ ∅,
+                item ↦ ∅
+              ⟧
+            )
+          ⟧,
+          index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-177-24),
+            auto-named-attr-at-177-24(accum, item, index) ↦ ⟦
+              φ ↦ -1.eq(ξ.accum).and(ξ.item.eq(ξ.ρ.wanted)).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          last-index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-190-24),
+            auto-named-attr-at-190-24(accum, item, index) ↦ ⟦
+              φ ↦ ξ.item.eq(ξ.ρ.wanted).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          contains(element) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.element)).not
+          ⟧,
+          sorted ↦ ⟦
+            φ ↦ ξ.ρ
+          ⟧,
+          filteredi(func) ↦ ⟦
+            origin-length ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ ξ.ρ.ρ.list(ξ.rec-filtered(0.as-bytes, Φ̇.tuple.empty)),
+            rec-filtered(idx-as-bytes, accum) ↦ ⟦
+              original ↦ ξ.ρ.ρ.origin,
+              index ↦ ξ.idx-as-bytes.as-number,
+              item ↦ ξ.ρ.ρ.origin.at(ξ.index),
+              φ ↦ ξ.idx-as-bytes.eq(ξ.ρ.origin-length).if(
+                ξ.accum,
+                ξ.ρ.rec-filtered(
+                  1.plus(ξ.index).as-bytes,
+                  ξ.ρ.func(ξ.item, ξ.index).if(ξ.accum.with(ξ.item), ξ.accum)
+                )
+              )
+            ⟧
+          ⟧,
+          filtered(func) ↦ ⟦
+            φ ↦ ξ.ρ.filteredi(ξ.auto-named-attr-at-243-32),
+            auto-named-attr-at-243-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          head(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            φ ↦ Φ̇.switch(
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty,
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, 0.eq(ξ.idx)), ξ.ρ.ρ.list(Φ̇.tuple.empty)
+                      )
+                    ),
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, 0.gt(ξ.idx)), ξ.ρ.tail(ξ.index.as-number.neg)
+                    )
+                  ),
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin.length.lte(ξ.idx)), ξ.ρ
+                  )
+                ),
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.true),
+                  ξ.ρ.ρ.list(
+                    ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-264-32)
+                  )
+                )
+              )
+            ),
+            auto-named-attr-at-264-32(accum, item, index) ↦ ⟦
+              φ ↦ ξ.index.gte(ξ.ρ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          tail(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            start ↦ Φ̇.dataized(ξ.ρ.origin.length.minus(ξ.idx.as-number)).as-bytes,
+            φ ↦ 0.gt(ξ.start).if(
+              ξ.ρ,
+              ξ.ρ.ρ.list(
+                ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-280-26)
+              )
+            ),
+            auto-named-attr-at-280-26(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.idx.gte(ξ.ρ.start).if(ξ.accum.with(ξ.item), ξ.accum)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/map.phi](./org/eolang/structs/map.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        map(pairs) ↦ ⟦
+          φ ↦ ξ.auto-named-attr-at-37-6.initialized,
+          entry(key, value) ↦ ⟦⟧,
+          initialized(entries) ↦ ⟦
+            initialized ↦ ξ,
+            size ↦ ξ.entries.length,
+            keys ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.key,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            values ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.value,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            has(key) ↦ ⟦
+              φ ↦ ξ.ρ.found(ξ.key).exists
+            ⟧,
+            found(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.size.eq(0).if(ξ.not-found, ξ.rec-key-search(ξ.not-found, 0)),
+              rec-key-search(found, index) ↦ ⟦
+                entry ↦ ξ.ρ.ρ.entries.at(ξ.index),
+                φ ↦ ξ.found.exists.or(ξ.ρ.ρ.size.eq(ξ.index)).if(
+                  ξ.found,
+                  ξ.ρ.rec-key-search(
+                    ξ.ρ.hash.eq(ξ.entry.hash).if(
+                      ξ.auto-named-attr-at-133-54, ξ.found
+                    ),
+                    ξ.index.plus(1)
+                  )
+                ),
+                auto-named-attr-at-133-54 ↦ ⟦
+                  exists ↦ Φ̇.true,
+                  get ↦ ξ.ρ.entry.value
+                ⟧
+              ⟧,
+              not-found ↦ ⟦
+                exists ↦ Φ̇.false,
+                get ↦ Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Object by hash code %d from given key does not exists",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.hash)
+                  )
+                )
+              ⟧
+            ⟧,
+            with(key, value) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-153-50
+                ).origin.with(ξ.auto-named-attr-at-154-12)
+              ),
+              auto-named-attr-at-153-50(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧,
+              auto-named-attr-at-154-12 ↦ ⟦
+                key ↦ ξ.ρ.key,
+                value ↦ ξ.ρ.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧,
+            without(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-167-48
+                ).origin
+              ),
+              auto-named-attr-at-167-48(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧
+            ⟧
+          ⟧,
+          auto-named-attr-at-37-6 ↦ ⟦
+            pairs-size ↦ Φ̇.dataized(ξ.ρ.pairs.length).as-bytes,
+            φ ↦ ξ.ρ.initialized(
+              ξ.pairs-size.eq(0).if(
+                Φ̇.tuple.empty,
+                ξ.rec-rebuild(Φ̇.tuple.empty, 0, Φ̇.structs.list(Φ̇.tuple.empty))
+              )
+            ),
+            rec-rebuild(accum, index, hashes) ↦ ⟦
+              entry ↦ ξ.ρ.ρ.pairs.at(ξ.index),
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.entry.key)).as-bytes,
+              φ ↦ ξ.ρ.pairs-size.eq(ξ.index).if(
+                ξ.accum,
+                ξ.ρ.rec-rebuild(
+                  ξ.hashes.contains(ξ.hash).if(
+                    ξ.accum, ξ.accum.with(ξ.auto-named-attr-at-59-18)
+                  ),
+                  ξ.index.plus(1),
+                  ξ.hashes.with(ξ.hash)
+                )
+              ),
+              auto-named-attr-at-59-18 ↦ ⟦
+                key ↦ ξ.ρ.entry.key,
+                value ↦ ξ.ρ.entry.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/range-of-ints.phi](./org/eolang/structs/range-of-ints.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        range-of-ints(start, end) ↦ ⟦
+          φ ↦ 0.eq(ξ.start).or(1.eq(ξ.start.div(ξ.start))).and(
+            0.eq(ξ.end).or(1.eq(ξ.end.div(ξ.end)))
+          ).if(
+            Φ̇.structs.range(ξ.auto-named-attr-at-42-8, ξ.end),
+            Φ̇.error("Some of the arguments are not integers")
+          ),
+          auto-named-attr-at-42-8 ↦ ⟦
+            build(num) ↦ ⟦
+              φ ↦ ξ.num,
+              next ↦ ξ.ρ.build(1.plus(ξ.φ))
+            ⟧,
+            φ ↦ ξ.build(ξ.ρ.start)
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/range.phi](./org/eolang/structs/range.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        range(start, end) ↦ ⟦
+          φ ↦ Φ̇.structs.list(
+            ξ.start.lt(ξ.end).if(
+              ξ.appended(Φ̇.tuple(Φ̇.tuple.empty, ξ.start), ξ.start.next), Φ̇.tuple.empty
+            )
+          ),
+          appended(acc, current) ↦ ⟦
+            φ ↦ ξ.current.lt(ξ.ρ.end).if(
+              ξ.ρ.appended(ξ.acc.with(ξ.current), ξ.current.next), ξ.acc
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/set.phi](./org/eolang/structs/set.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        set(lst) ↦ ⟦
+          φ ↦ ξ.initialized(
+            Φ̇.structs.map(
+              Φ̇.structs.list(ξ.lst).mapped(
+                ⟦
+                  φ ↦ Φ̇.structs.map.entry(ξ.item, Φ̇.true),
+                  item ↦ ∅
+                ⟧
+              ).origin
+            )
+          ).initialized,
+          initialized(map) ↦ ⟦
+            initialized ↦ ξ,
+            φ ↦ ξ.map.keys,
+            size ↦ ξ.map.size,
+            with(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.with(ξ.item, Φ̇.true))
+            ⟧,
+            without(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.without(ξ.item))
+            ⟧,
+            has(item) ↦ ⟦
+              φ ↦ ξ.ρ.map.has(ξ.item)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/switch.phi](./org/eolang/switch.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      switch(cases) ↦ ⟦
+        len ↦ Φ̇.dataized(ξ.cases.length).as-bytes,
+        φ ↦ ξ.len.eq(0).if(Φ̇.error("switch cases are empty"), ξ.case-at(0)),
+        case-at(index) ↦ ⟦
+          case ↦ ξ.ρ.cases.at(ξ.index),
+          φ ↦ ξ.index.eq(ξ.ρ.len).if(
+            Φ̇.true, ξ.case.at(0).if(ξ.case.at(1), ξ.ρ.case-at(ξ.index.plus(1)))
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/getenv.phi](./org/eolang/sys/getenv.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        getenv(name) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            Φ̇.sys.win32(
+              "GetEnvironmentVariable", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.name), 512)
+            ),
+            Φ̇.sys.posix("getenv", Φ̇.tuple(Φ̇.tuple.empty, ξ.name))
+          ).output
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/line-separator.phi](./org/eolang/sys/line-separator.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        line-separator ↦ ⟦
+          φ ↦ Φ̇.string(Φ̇.sys.os.is-windows.if("\r\n", "\n").as-bytes)
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/os.phi](./org/eolang/sys/os.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        os ↦ ⟦
+          φ ↦ ξ.name,
+          is-windows ↦ ⟦
+            os-name ↦ Φ̇.dataized(ξ.ρ.name).as-bytes,
+            φ ↦ ξ.os-name.size.gt(6).and(ξ.os-name.slice(0, 7).eq("Windows"))
+          ⟧,
+          is-linux ↦ Φ̇.txt.regex("/linux/i").matches(ξ.name).as-bool,
+          is-macos ↦ Φ̇.txt.regex("/mac/i").matches(ξ.name).as-bool,
+          name ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_os_name
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/posix.phi](./org/eolang/sys/posix.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        posix(name, args) ↦ ⟦
+          stdin-fileno ↦ 0,
+          stdout-fileno ↦ 1,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          inaddr-none ↦ -1,
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_posix_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          timeval(tv-sec, tv-usec) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/win32.phi](./org/eolang/sys/win32.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        win32(name, args) ↦ ⟦
+          std-input-handle ↦ -10,
+          std-output-handle ↦ -11,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          invalid-socket ↦ -1,
+          socket-error ↦ -1,
+          inaddr-none ↦ -1,
+          winsock-version-2-2 ↦ Φ̇.bytes(⟦ Δ ⤍ 02-02 ⟧),
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_win32_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          system-time(year, month, day, day-of-week, hour, minute, second, milliseconds) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/true.phi](./org/eolang/true.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      true ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧),
+        not ↦ Φ̇.false,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.left
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/try.phi](./org/eolang/try.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      try(main, catch, finally) ↦ ⟦
+        λ ⤍ Lorg_eolang_try
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/tuple.phi](./org/eolang/tuple.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      tuple(head, tail) ↦ ⟦
+        empty ↦ ⟦
+          length ↦ 0,
+          at(i) ↦ ⟦
+            φ ↦ Φ̇.error("Can't get an object from the empty tuple")
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+          ⟧
+        ⟧,
+        length ↦ ⟦
+          len ↦ Φ̇.dataized(ξ.ρ.head.length.plus(1)).as-bytes,
+          φ ↦ Φ̇.number(ξ.len)
+        ⟧,
+        at(i) ↦ ⟦
+          len ↦ ξ.ρ.length,
+          idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+          index ↦ Φ̇.dataized(0.gt(ξ.idx).if(ξ.len.plus(ξ.idx), ξ.idx)).as-bytes,
+          φ ↦ 0.gt(ξ.index).or(ξ.len.lte(ξ.index)).if(
+            Φ̇.error("Given index is out of tuple bounds"), ξ.at-fast(ξ.ρ, ξ.len)
+          ),
+          at-fast(tup, len) ↦ ⟦
+            φ ↦ ξ.len.plus(-1).gt(ξ.ρ.index).if(
+              ξ.ρ.at-fast(ξ.tup.head, ξ.len.plus(-1)), ξ.tup.tail
+            )
+          ⟧
+        ⟧,
+        with(x) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/regex.phi](./org/eolang/txt/regex.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        regex(expression) ↦ ⟦
+          φ ↦ ξ.compiled,
+          compiled ↦ ⟦
+            λ ⤍ Lorg_eolang_txt_regex_compiled
+          ⟧,
+          pattern(serialized) ↦ ⟦
+            matches(txt) ↦ ⟦
+              φ ↦ ξ.ρ.match(ξ.txt).next.exists
+            ⟧,
+            match(txt) ↦ ⟦
+              next ↦ ξ.matched-from-index(1, 0).matched,
+              matched-from-index(position, start) ↦ ⟦
+                λ ⤍ Lorg_eolang_txt_regex_pattern_match_matched_from_index
+              ⟧,
+              matched(position, start, from, to, groups) ↦ ⟦
+                matched ↦ ξ,
+                groups-count ↦ ξ.groups.length,
+                exists ↦ ξ.start.gte(0),
+                next ↦ ξ.exists.if(
+                  ξ.ρ.matched-from-index(ξ.position.plus(1), ξ.to).matched,
+                  Φ̇.error("Matched block does not exist, can't get next")
+                ),
+                text ↦ ξ.exists.if(
+                  ξ.group(0), Φ̇.error("Matched block does not exist, can't get text")
+                ),
+                group(index) ↦ ⟦
+                  φ ↦ ξ.ρ.groups.at(ξ.index)
+                ⟧
+              ⟧,
+              not-matched(position) ↦ ⟦
+                φ ↦ ξ.ρ.matched(
+                  ξ.position,
+                  -1,
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'from' position"
+                  ),
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'to' position"
+                  ),
+                  Φ̇.error("Matched block does not exist, can't get groups")
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/sprintf.phi](./org/eolang/txt/sprintf.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        sprintf(format, args) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sprintf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/sscanf.phi](./org/eolang/txt/sscanf.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        sscanf(format, read) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sscanf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/text.phi](./org/eolang/txt/text.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        text(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-alphanumeric ↦ Φ̇.txt.regex("/^[A-Za-z0-9]+$/").matches(ξ.origin),
+          is-alpha ↦ Φ̇.txt.regex("/^[a-zA-Z]+$/").matches(ξ.origin),
+          is-ascii ↦ Φ̇.txt.regex("/^[\\x00-\\x7F]*$/").matches(ξ.origin),
+          slice(start, len) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.text(ξ.ρ.origin.slice(ξ.start, ξ.len))
+          ⟧,
+          trimmed-left ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.first-non-space-index(0)).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(ξ.idx, Φ̇.number(ξ.len).minus(Φ̇.number(ξ.idx)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.index,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(1)), ξ.index
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed-right ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(0, ξ.first-non-space-index(Φ̇.number(ξ.len).plus(-1)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ -1.eq(ξ.index).if(
+                0,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(-1)), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.length).if(ξ.ρ, ξ.ρ.trimmed-left.trimmed-right)
+          ⟧,
+          joined(items) ↦ ⟦
+            delimiter ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            first ↦ ξ.items.at(0),
+            len ↦ Φ̇.dataized(ξ.items.length).as-bytes,
+            not-empty ↦ Φ̇.dataized(
+              1.eq(ξ.len).if(
+                ξ.first, ξ.first.as-bytes.concat(ξ.with-delimiter("".as-bytes, 1))
+              )
+            ).as-bytes,
+            φ ↦ ξ.ρ.ρ.text(0.eq(ξ.len).if("", Φ̇.string(ξ.not-empty))),
+            with-delimiter(acc, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.acc,
+                ξ.ρ.with-delimiter(
+                  ξ.acc.concat(ξ.ρ.delimiter.concat(ξ.ρ.items.at(ξ.index))), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          repeated(times) ↦ ⟦
+            bts ↦ Φ̇.dataized(ξ.ρ.origin.as-bytes).as-bytes,
+            amount ↦ Φ̇.dataized(ξ.times).as-bytes,
+            φ ↦ 0.gt(ξ.amount).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't repeat text %d times", Φ̇.tuple(Φ̇.tuple.empty, ξ.amount)
+                )
+              ),
+              ξ.ρ.ρ.text(
+                0.eq(ξ.amount).if("", Φ̇.string(ξ.rec-repeated(ξ.bts, 1)))
+              )
+            ),
+            rec-repeated(accum, index) ↦ ⟦
+              φ ↦ ξ.ρ.amount.eq(ξ.index).if(
+                ξ.accum, ξ.ρ.rec-repeated(ξ.accum.concat(ξ.ρ.bts), ξ.index.plus(1))
+              )
+            ⟧
+          ⟧,
+          contains(substring) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.substring)).not
+          ⟧,
+          ends-with(substring) ↦ ⟦
+            substr ↦ Φ̇.dataized(ξ.substring).as-bytes,
+            φ ↦ ξ.ρ.index-of(ξ.substr).eq(ξ.ρ.length.minus(ξ.substr.size))
+          ⟧,
+          starts-with(substring) ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.index-of(ξ.substring))
+          ⟧,
+          index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            end ↦ Φ̇.dataized(Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(-1, ξ.rec-index-of-substr(0)),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ ξ.ρ.end.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          last-index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(
+              -1,
+              ξ.rec-index-of-substr(
+                Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))
+              )
+            ),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ 0.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(-1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          up-cased ↦ ⟦
+            ascii-z ↦ Φ̇.dataized(ξ.ascii("z")).as-bytes,
+            ascii-a ↦ Φ̇.dataized(ξ.ascii("a")).as-bytes,
+            distance ↦ Φ̇.number(ξ.ascii-a).minus(ξ.ascii("A")),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-258-22
+                )
+              )
+            ),
+            ascii(char) ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(ξ.char.as-bytes).as-i64.as-number
+            ⟧,
+            auto-named-attr-at-258-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.minus(ξ.ρ.distance).as-i64.as-bytes.slice(7, 1), ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          low-cased ↦ ⟦
+            ascii-z ↦ ξ.ρ.up-cased.ascii("Z"),
+            ascii-a ↦ ξ.ρ.up-cased.ascii("A"),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-291-22
+                )
+              )
+            ),
+            auto-named-attr-at-291-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ρ.up-cased.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.plus(ξ.ρ.ρ.up-cased.distance).as-i64.as-bytes.slice(
+                    7, 1
+                  ),
+                  ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          at(i) ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+            index ↦ Φ̇.dataized(
+              0.gt(ξ.idx).if(Φ̇.number(ξ.len).plus(ξ.idx), ξ.idx)
+            ).as-bytes,
+            φ ↦ 0.gt(ξ.index).or(Φ̇.number(ξ.index).gte(ξ.len)).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Given index %d is out of text bounds", Φ̇.tuple(Φ̇.tuple.empty, ξ.index)
+                )
+              ),
+              ξ.ρ.slice(ξ.index, 1)
+            )
+          ⟧,
+          replaced(target, replacement) ↦ ⟦
+            self-as-bytes ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            reinit ↦ Φ̇.string(ξ.self-as-bytes),
+            matched ↦ ξ.target.match(ξ.reinit).next,
+            φ ↦ ξ.matched.exists.not.if(
+              Φ̇.txt.text(ξ.reinit),
+              Φ̇.txt.text(ξ.rec-replaced(ξ.matched, "", ξ.matched.start))
+            ),
+            rec-replaced(block, accum, start) ↦ ⟦
+              φ ↦ ξ.block.exists.if(
+                ξ.ρ.rec-replaced(
+                  ξ.block.next,
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.block.from.minus(ξ.start))
+                  ).concat(ξ.ρ.replacement),
+                  ξ.block.to
+                ),
+                Φ̇.string(
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.ρ.reinit.length.minus(ξ.start))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          as-number ↦ ⟦
+            scanned ↦ Φ̇.txt.sscanf("%f", ξ.ρ.origin),
+            φ ↦ ξ.scanned.length.eq(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't convert text %s to number", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin)
+                )
+              ),
+              ξ.scanned.tail
+            )
+          ⟧,
+          split(delimiter) ↦ ⟦
+            delim ↦ Φ̇.dataized(ξ.delimiter).as-bytes,
+            self-as-bytes ↦ ξ.ρ.origin.as-bytes,
+            len ↦ Φ̇.dataized(ξ.self-as-bytes.size).as-bytes,
+            φ ↦ ξ.len.eq(0).if(Φ̇.tuple.empty, ξ.rec-split(Φ̇.tuple.empty, 0, 0)),
+            rec-split(accum, start, current) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.current).if(
+                ξ.with-substr,
+                ξ.ρ.delim.eq(ξ.ρ.self-as-bytes.slice(ξ.current, 1)).if(
+                  ξ.ρ.rec-split(
+                    ξ.with-substr, ξ.current.plus(1), ξ.current.plus(1)
+                  ),
+                  ξ.ρ.rec-split(ξ.accum, ξ.start, ξ.current.plus(1))
+                )
+              ),
+              with-substr ↦ ξ.accum.with(
+                Φ̇.string(
+                  ξ.ρ.self-as-bytes.slice(ξ.start, ξ.current.minus(ξ.start))
+                )
+              )
+            ⟧
+          ⟧,
+          chained(others) ↦ ⟦
+            φ ↦ 0.eq(ξ.others.length).if(
+              ξ.ρ,
+              ξ.ρ.ρ.text(
+                Φ̇.string(
+                  Φ̇.structs.list(ξ.others).reduced(
+                    ξ.ρ.origin.as-bytes,
+                    ⟦
+                      φ ↦ ξ.accum.concat(ξ.str.as-bytes),
+                      accum ↦ ∅,
+                      str ↦ ∅
+                    ⟧
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/while.phi](./org/eolang/while.phi)
+
+```console
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      while(condition, body) ↦ ⟦
+        φ ↦ ξ.condition(0).as-bool.if(ξ.loop(0), Φ̇.false),
+        loop(index) ↦ ⟦
+          current ↦ ξ.ρ.body(ξ.index),
+          φ ↦ ξ.ρ.condition(ξ.index.plus(1)).as-bool.if(
+            Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.current), ξ.ρ.loop(ξ.index.plus(1))
+              )
+            ),
+            ξ.current
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
diff --git a/data/0.49.3/org/eolang/as-phi.phi b/data/0.49.3/org/eolang/as-phi.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/as-phi.phi
@@ -0,0 +1,11 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      as-phi(x) ↦ ⟦
+        λ ⤍ Lorg_eolang_as_phi
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/bytes.phi b/data/0.49.3/org/eolang/bytes.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/bytes.phi
@@ -0,0 +1,95 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      bytes(data) ↦ ⟦
+        φ ↦ ξ.data,
+        as-bytes ↦ ξ,
+        as-bool ↦ ξ.eq(Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)),
+        as-number ↦ ⟦
+          φ ↦ ξ.ρ.eq(Φ̇.nan.as-bytes).if(
+            Φ̇.nan,
+            ξ.ρ.eq(Φ̇.positive-infinity.as-bytes).if(
+              Φ̇.positive-infinity,
+              ξ.ρ.eq(Φ̇.negative-infinity.as-bytes).if(
+                Φ̇.negative-infinity,
+                ξ.ρ.size.eq(8).if(
+                  Φ̇.number(ξ.ρ),
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Can't convert non 8 length bytes to a number, bytes are %x", Φ̇.tuple.empty
+                    )
+                  )
+                )
+              )
+            )
+          )
+        ⟧,
+        eq(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_eq
+        ⟧,
+        size ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_size
+        ⟧,
+        slice(start, len) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_slice
+        ⟧,
+        as-i64 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(8).if(
+            Φ̇.i64(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 8 length bytes to i64, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i32 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(4).if(
+            Φ̇.i32(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 4 length bytes to i32, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i16 ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(2).if(
+            Φ̇.i16(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 2 length bytes to i16, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        and(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_and
+        ⟧,
+        or(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_or
+        ⟧,
+        xor(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_xor
+        ⟧,
+        not ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_not
+        ⟧,
+        left(x) ↦ ⟦
+          φ ↦ ξ.ρ.right(ξ.x.neg)
+        ⟧,
+        right(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_right
+        ⟧,
+        concat(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_concat
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/cti.phi b/data/0.49.3/org/eolang/cti.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/cti.phi
@@ -0,0 +1,11 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      cti(delegate, level, message) ↦ ⟦
+        φ ↦ ξ.delegate
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/dataized.phi b/data/0.49.3/org/eolang/dataized.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/dataized.phi
@@ -0,0 +1,18 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      dataized(target) ↦ ⟦
+        φ ↦ Φ̇.try(
+          ξ.target,
+          ⟦
+            φ ↦ Φ̇.error(ξ.ex),
+            ex ↦ ∅
+          ⟧,
+          Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)
+        )
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/error.phi b/data/0.49.3/org/eolang/error.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/error.phi
@@ -0,0 +1,11 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      error(message) ↦ ⟦
+        λ ⤍ Lorg_eolang_error
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/false.phi b/data/0.49.3/org/eolang/false.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/false.phi
@@ -0,0 +1,21 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      false ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+        not ↦ Φ̇.true,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.right
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/fs/dir.phi b/data/0.49.3/org/eolang/fs/dir.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/fs/dir.phi
@@ -0,0 +1,71 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        dir(file) ↦ ⟦
+          φ ↦ ξ.file,
+          is-directory ↦ Φ̇.true,
+          made ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.mkdir), ξ.ρ))
+            ),
+            mkdir ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_made_mkdir
+            ⟧
+          ⟧,
+          walk(glob) ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_dir_walk
+          ⟧,
+          deleted ↦ ⟦
+            walked ↦ ξ.ρ.walk("**").at.ρ,
+            len ↦ Φ̇.dataized(ξ.walked.length).as-bytes,
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.rec-delete(ξ.walked, 0)), ξ.ρ
+                )
+              ),
+              ξ.ρ
+            ),
+            rec-delete(tup, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                Φ̇.true,
+                Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.tup.tail.deleted.exists),
+                    ξ.ρ.rec-delete(ξ.tup.head, ξ.index.plus(1))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          tmpfile ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.fs.file(Φ̇.string(ξ.touch.as-bytes)),
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Directory %s does not exist, can't create temporary file",
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+                )
+              )
+            ),
+            touch ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_tmpfile_touch
+            ⟧
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            φ ↦ Φ̇.error(
+              Φ̇.txt.sprintf(
+                "The file %s is a directory, can't open for I/O operations",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/fs/file.phi b/data/0.49.3/org/eolang/fs/file.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/fs/file.phi
@@ -0,0 +1,164 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        file(path) ↦ ⟦
+          φ ↦ ξ.path,
+          is-directory ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_is_directory
+          ⟧,
+          exists ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_exists
+          ⟧,
+          touched ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.touch), ξ.ρ))
+            ),
+            touch ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_touched_touch
+            ⟧
+          ⟧,
+          deleted ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.delete), ξ.ρ)), ξ.ρ
+            ),
+            delete ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_deleted_delete
+            ⟧
+          ⟧,
+          size ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_size
+          ⟧,
+          moved(target) ↦ ⟦
+            φ ↦ Φ̇.fs.file(Φ̇.string(ξ.move.as-bytes)),
+            move ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_moved_move
+            ⟧
+          ⟧,
+          as-path ↦ ⟦
+            φ ↦ Φ̇.fs.path(ξ.ρ.path).determined
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            access ↦ Φ̇.dataized(ξ.mode).as-bytes,
+            read ↦ ξ.access.eq("r"),
+            write ↦ ξ.access.eq("w"),
+            append ↦ ξ.access.eq("a"),
+            read-write ↦ ξ.access.eq("r+"),
+            write-read ↦ ξ.access.eq("w+"),
+            read-append ↦ ξ.access.eq("a+"),
+            can-read ↦ ξ.read.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).as-bool,
+            can-write ↦ ξ.write.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).or(
+              ξ.append
+            ).as-bool,
+            must-exists ↦ ξ.read.or(ξ.read-write).as-bool,
+            truncate ↦ ξ.write.or(ξ.write-read).as-bool,
+            φ ↦ ξ.can-read.not.and(ξ.can-write.not).if(
+              Φ̇.error(
+                "Wrong access mod. Only next modes are available: 'r', 'w', 'a', 'r+', 'w+', 'a+'"
+              ),
+              ξ.ρ.exists.not.if(
+                ξ.must-exists.if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "File must exist for given access mod: '%s'",
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.access)
+                    )
+                  ),
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.touched.touch), ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  )
+                ),
+                ξ.truncate.if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.deleted.delete), ξ.ρ.touched.touch
+                        ),
+                        ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  ),
+                  Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.process-file), ξ.ρ))
+                )
+              )
+            ),
+            process-file ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_open_process_file
+            ⟧,
+            file-stream ↦ ⟦
+              read(size) ↦ ⟦
+                φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+                input-block(buffer) ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ ξ.buffer,
+                  read(size) ↦ ⟦
+                    read-bytes ↦ Φ̇.dataized(ξ.ρ.ρ.read-bytes(ξ.size)).as-bytes,
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-read.not.if(
+                      ξ.auto-named-attr-at-216-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-216-18 ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't read from file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                read-bytes(size) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_read_read_bytes
+                ⟧
+              ⟧,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.output-block.write(ξ.buffer).self,
+                output-block ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ Φ̇.true,
+                  write(buffer) ↦ ⟦
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-write.not.if(
+                      ξ.auto-named-attr-at-258-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.written-bytes(ξ.buffer)), ξ.ρ.ρ.output-block
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-258-18 ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't write to file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                written-bytes(buffer) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_write_written_bytes
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/fs/path.phi b/data/0.49.3/org/eolang/fs/path.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/fs/path.phi
@@ -0,0 +1,273 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        path(uri) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win32(Φ̇.string(ξ.uri.as-bytes)), ξ.posix(Φ̇.string(ξ.uri.as-bytes))
+          ).determined,
+          joined(paths) ↦ ⟦
+            joined-path ↦ Φ̇.string(
+              Φ̇.txt.text(ξ.ρ.separator).joined(ξ.paths).as-bytes
+            ),
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.ρ.win32(ξ.joined-path), ξ.ρ.posix(ξ.joined-path)
+            ).normalized
+          ⟧,
+          separator ↦ ⟦
+            φ ↦ Φ̇.sys.os.is-windows.if(ξ.ρ.win32.separator, ξ.ρ.posix.separator)
+          ⟧,
+          posix(uri) ↦ ⟦
+            determined ↦ ξ,
+            separator ↦ "/",
+            as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+            as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+            φ ↦ ξ.uri,
+            is-absolute ↦ ⟦
+              φ ↦ ξ.ρ.uri.length.gt(0).and(
+                ξ.ρ.uri.as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+              )
+            ⟧,
+            normalized ↦ ⟦
+              uri-as-bytes ↦ ξ.ρ.uri.as-bytes,
+              is-absolute ↦ ξ.ρ.is-absolute.as-bool,
+              has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                  ξ.ρ.separator
+                )
+              ),
+              path ↦ Φ̇.txt.text(ξ.ρ.separator).joined(
+                Φ̇.structs.list(Φ̇.txt.text(ξ.ρ.uri).split(ξ.ρ.separator)).reduced(
+                  Φ̇.tuple.empty, ξ.auto-named-attr-at-102-25
+                )
+              ),
+              normalized ↦ ξ.ρ.uri.length.eq(0).if(
+                ".",
+                ξ.is-absolute.if(ξ.ρ.separator.concat(ξ.path), ξ.path).concat(
+                  ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                )
+              ).as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                ξ.normalized.eq("//").if("/", Φ̇.string(ξ.normalized))
+              ).determined,
+              auto-named-attr-at-102-25(accum, segment) ↦ ⟦
+                φ ↦ ξ.segment.eq("..").if(
+                  ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                    ξ.accum.head, ξ.ρ.is-absolute.not.if(ξ.accum.with(ξ.segment), ξ.accum)
+                  ),
+                  ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                    ξ.accum, ξ.accum.with(ξ.segment)
+                  )
+                )
+              ⟧
+            ⟧,
+            resolved(other) ↦ ⟦
+              other-as-bytes ↦ ξ.other.as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                Φ̇.string(
+                  ξ.other-as-bytes.slice(0, 1).eq(ξ.ρ.separator).if(
+                    ξ.other-as-bytes, ξ.ρ.uri.concat(ξ.ρ.separator).concat(ξ.other-as-bytes)
+                  )
+                )
+              ).normalized
+            ⟧,
+            basename ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              slice-start-idx ↦ Φ̇.dataized(
+                ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+              ).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                  ξ.pth,
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            extname ↦ ⟦
+              base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+              slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+              φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                "",
+                Φ̇.string(
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            dirname ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                  ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                )
+              )
+            ⟧
+          ⟧,
+          win32(uri) ↦ ⟦
+            separator ↦ "\\",
+            φ ↦ ξ.validated(
+              Φ̇.string(ξ.validated.separated-correctly(ξ.uri).as-bytes)
+            ).determined,
+            validated(uri) ↦ ⟦
+              determined ↦ ξ,
+              separator ↦ ξ.ρ.separator,
+              as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+              as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+              φ ↦ ξ.uri,
+              is-drive-relative(uri) ↦ ⟦
+                φ ↦ Φ̇.txt.regex("/^[a-zA-Z]:/").matches(ξ.uri).as-bool
+              ⟧,
+              is-root-relative(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+                )
+              ⟧,
+              separated-correctly(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                pth ↦ Φ̇.txt.text(Φ̇.string(ξ.uri-as-bytes)),
+                replaced ↦ Φ̇.dataized(
+                  ξ.pth.replaced(Φ̇.txt.regex("/\\//"), ξ.ρ.separator)
+                ).as-bytes,
+                φ ↦ ξ.pth.index-of(ξ.ρ.ρ.ρ.ρ.path.posix.separator).eq(-1).if(
+                  Φ̇.string(ξ.uri-as-bytes), Φ̇.string(ξ.replaced)
+                )
+              ⟧,
+              is-absolute ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.eq(0).if(
+                  Φ̇.false,
+                  ξ.ρ.is-root-relative(ξ.uri-as-bytes).or(
+                    ξ.uri-as-bytes.size.gt(1).and(
+                      ξ.ρ.is-drive-relative(ξ.uri-as-bytes)
+                    )
+                  )
+                )
+              ⟧,
+              normalized ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.uri-as-bytes).as-bool,
+                is-root-relative ↦ ξ.ρ.is-root-relative(ξ.uri-as-bytes).as-bool,
+                driveless ↦ Φ̇.dataized(
+                  ξ.is-drive-relative.if(
+                    ξ.uri-as-bytes.slice(2, ξ.uri-as-bytes.size.plus(-2)), ξ.uri-as-bytes
+                  )
+                ).as-bytes,
+                has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                    ξ.ρ.separator
+                  )
+                ),
+                path ↦ Φ̇.dataized(
+                  Φ̇.txt.text(ξ.ρ.separator).joined(
+                    Φ̇.structs.list(
+                      Φ̇.txt.text(ξ.driveless).split(ξ.ρ.separator)
+                    ).reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-357-27)
+                  )
+                ).as-bytes,
+                normalized ↦ ξ.driveless.size.eq(0).if(
+                  ".",
+                  ξ.is-drive-relative.if(
+                    ξ.driveless.slice(0, 1).eq(ξ.ρ.separator).if(
+                      ξ.ρ.uri.slice(0, 3), ξ.ρ.uri.slice(0, 2)
+                    ),
+                    ξ.is-root-relative.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  ).concat(ξ.path).concat(
+                    ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  )
+                ).as-bytes,
+                φ ↦ ξ.ρ.ρ.validated(
+                  ξ.normalized.eq("\\\\").if(
+                    ξ.ρ.separator, Φ̇.string(ξ.normalized)
+                  )
+                ).determined,
+                auto-named-attr-at-357-27(accum, segment) ↦ ⟦
+                  φ ↦ ξ.segment.eq("..").if(
+                    ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                      ξ.accum.head,
+                      ξ.ρ.is-root-relative.not.and(ξ.ρ.is-drive-relative.not).if(
+                        ξ.accum.with(ξ.segment), ξ.accum
+                      )
+                    ),
+                    ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                      ξ.accum, ξ.accum.with(ξ.segment)
+                    )
+                  )
+                ⟧
+              ⟧,
+              resolved(other) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                valid-other ↦ Φ̇.dataized(ξ.ρ.separated-correctly(ξ.other)).as-bytes,
+                other-is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.valid-other).as-bool,
+                other-is-root-relative ↦ ξ.ρ.is-root-relative(ξ.valid-other).as-bool,
+                φ ↦ ξ.ρ.ρ.validated(
+                  Φ̇.string(
+                    ξ.other-is-drive-relative.if(
+                      ξ.valid-other,
+                      ξ.other-is-root-relative.if(
+                        ξ.ρ.is-drive-relative(ξ.uri-as-bytes).if(
+                          ξ.uri-as-bytes.slice(0, 2).concat(ξ.valid-other), ξ.valid-other
+                        ),
+                        ξ.uri-as-bytes.concat(ξ.ρ.separator).concat(
+                          ξ.valid-other
+                        )
+                      )
+                    )
+                  )
+                ).normalized
+              ⟧,
+              basename ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                slice-start-idx ↦ Φ̇.dataized(
+                  ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+                ).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                    ξ.pth,
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              extname ↦ ⟦
+                base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+                slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+                φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                  "",
+                  Φ̇.string(
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              dirname ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                    ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                  )
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/fs/tmpdir.phi b/data/0.49.3/org/eolang/fs/tmpdir.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/fs/tmpdir.phi
@@ -0,0 +1,39 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      fs ↦ ⟦
+        tmpdir ↦ ⟦
+          φ ↦ Φ̇.fs.dir(Φ̇.fs.file(Φ̇.string(ξ.os-tmp-dir))),
+          os-tmp-dir ↦ Φ̇.dataized(ξ.os-tmp-dir-1).as-bytes,
+          os-tmp-dir-1 ↦ ⟦
+            tmpdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TMPDIR")).as-bytes,
+            tmp ↦ Φ̇.dataized(Φ̇.sys.getenv("TMP")).as-bytes,
+            temp ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMP")).as-bytes,
+            tempdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMPDIR")).as-bytes,
+            userprofile ↦ Φ̇.dataized(Φ̇.sys.getenv("USERPROFILE")).as-bytes,
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.tmp.eq("").if(
+                ξ.temp.eq("").if(
+                  ξ.userprofile.eq("").if("C:\\Windows", ξ.userprofile), ξ.temp
+                ),
+                ξ.tmp
+              ),
+              ξ.tmpdir.eq("").if(
+                ξ.tmp.eq("").if(
+                  ξ.temp.eq("").if(
+                    ξ.tempdir.eq("").if("/tmp", ξ.tempdir), ξ.temp
+                  ),
+                  ξ.tmp
+                ),
+                ξ.tmpdir
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/go.phi b/data/0.49.3/org/eolang/go.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/go.phi
@@ -0,0 +1,34 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      go ↦ ⟦
+        id ↦ Φ̇.dataized(
+          Φ̇.malloc.of(
+            8,
+            ⟦
+              φ ↦ ξ.m.put(ξ.m.id),
+              m ↦ ∅
+            ⟧
+          )
+        ).as-bytes,
+        to(body) ↦ ⟦
+          φ ↦ Φ̇.try(ξ.body(ξ.token), ξ.auto-named-attr-at-63-9, Φ̇.true),
+          token ↦ ⟦
+            backward ↦ Φ̇.error(ξ.jump(ξ.ρ.ρ.to(ξ.ρ.body))),
+            jump(value) ↦ ⟦
+              id ↦ ξ.ρ.ρ.ρ.id
+            ⟧,
+            forward(res) ↦ ⟦
+              φ ↦ Φ̇.error(ξ.ρ.jump(ξ.res))
+            ⟧
+          ⟧,
+          auto-named-attr-at-63-9(e) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.id.eq(ξ.e.id).if(ξ.e.value, Φ̇.error(ξ.e))
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/i16.phi b/data/0.49.3/org/eolang/i16.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/i16.phi
@@ -0,0 +1,67 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i16(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i16 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32.as-i16),
+        as-i64 ↦ ξ.as-i32.as-i64,
+        as-number ↦ ξ.as-i64.as-number,
+        as-i32 ↦ ⟦
+          λ ⤍ Lorg_eolang_i16_as_i32
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lt(ξ.x.as-i16.as-i32)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lte(ξ.x.as-i16.as-i32)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gt(ξ.x.as-i16.as-i32)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gte(ξ.x.as-i16.as-i32)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.times(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.plus(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i16.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i16 ↦ ξ.x.as-i16,
+          bts ↦ ξ.ρ.as-i32.div(ξ.x-as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧),
+          φ ↦ ξ.x-as-i16.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i16 zero",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i32.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))).if(
+              ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/i32.phi b/data/0.49.3/org/eolang/i32.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/i32.phi
@@ -0,0 +1,79 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i32(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i32 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32),
+        as-number ↦ ξ.as-i64.as-number,
+        as-i64 ↦ ⟦
+          λ ⤍ Lorg_eolang_i32_as_i64
+        ⟧,
+        as-i16 ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 2).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(
+            Φ̇.i16(ξ.ρ.as-bytes.slice(2, 2)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i32 number %d to i16 because it's out of i16 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            )
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lt(ξ.x.as-i32.as-i64)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lte(ξ.x.as-i32.as-i64)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gt(ξ.x.as-i32.as-i64)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gte(ξ.x.as-i32.as-i64)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.times(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.plus(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i32.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i32 ↦ ξ.x.as-i32,
+          bts ↦ ξ.ρ.as-i64.div(ξ.x-as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧),
+          φ ↦ ξ.x-as-i32.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i32 zero", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))).if(
+              ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/i64.phi b/data/0.49.3/org/eolang/i64.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/i64.phi
@@ -0,0 +1,59 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      i64(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i64 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64),
+        as-i16 ↦ ξ.as-i32.as-i16,
+        as-i32 ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 4).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(
+            Φ̇.i32(ξ.ρ.as-bytes.slice(4, 4)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i64 number %d to i32 because it's out of i32 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-number)
+              )
+            )
+          )
+        ⟧,
+        as-number ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_as_number
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.as-i64.gt(ξ.ρ.minus(ξ.ρ.ρ.i64(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(ξ.ρ.ρ.i64(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_div
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/io/bytes-as-input.phi b/data/0.49.3/org/eolang/io/bytes-as-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/io/bytes-as-input.phi
@@ -0,0 +1,36 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        bytes-as-input(bts) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.bts, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+            input-block(data, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                to-read ↦ Φ̇.dataized(ξ.size).as-bytes,
+                available ↦ Φ̇.dataized(ξ.ρ.data.size).as-bytes,
+                next ↦ Φ̇.dataized(
+                  Φ̇.number(ξ.available).gt(ξ.to-read).if(ξ.to-read, ξ.available)
+                ).as-bytes,
+                φ ↦ ξ.available.eq(0).if(
+                  ξ.ρ.ρ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.bytes(⟦ Δ ⤍ -- ⟧)),
+                  ξ.ρ.ρ.input-block(
+                    ξ.ρ.data.slice(
+                      ξ.next, Φ̇.number(ξ.available).minus(Φ̇.number(ξ.next))
+                    ).as-bytes,
+                    ξ.ρ.data.slice(0, ξ.next).as-bytes
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/io/console.phi b/data/0.49.3/org/eolang/io/console.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/io/console.phi
@@ -0,0 +1,122 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        console ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(ξ.windows-console, ξ.posix-console).platform,
+          posix-console ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.posix(
+                      "read",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.stdin-fileno), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.posix(
+                          "write",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.posix.stdout-fileno
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          windows-console ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.win32(
+                      "ReadFile",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.std-input-handle), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.win32(
+                          "WriteFile",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.win32.std-output-handle
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/io/dead-input.phi b/data/0.49.3/org/eolang/io/dead-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/io/dead-input.phi
@@ -0,0 +1,22 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        dead-input ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block,
+            input-block ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ -- ⟧),
+              read(size) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.input-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/io/dead-output.phi b/data/0.49.3/org/eolang/io/dead-output.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/io/dead-output.phi
@@ -0,0 +1,22 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        dead-output ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block,
+            output-block ↦ ⟦
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.output-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/io/input-length.phi b/data/0.49.3/org/eolang/io/input-length.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/io/input-length.phi
@@ -0,0 +1,21 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        input-length(input) ↦ ⟦
+          chunk ↦ 4096,
+          φ ↦ ξ.rec-read(ξ.input, 0),
+          rec-read(input, length) ↦ ⟦
+            read-bytes ↦ ξ.input.read(ξ.ρ.chunk).read.ρ,
+            φ ↦ ξ.read-bytes.size.eq(0).if(
+              ξ.length, ξ.ρ.rec-read(ξ.read-bytes, ξ.length.plus(ξ.read-bytes.size))
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/io/malloc-as-output.phi b/data/0.49.3/org/eolang/io/malloc-as-output.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/io/malloc-as-output.phi
@@ -0,0 +1,30 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        malloc-as-output(allocated) ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block(0).write(ξ.buffer).self,
+            output-block(offset) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty, ξ.ρ.ρ.ρ.allocated.write(ξ.ρ.offset, ξ.buffer)
+                    ),
+                    ξ.ρ.ρ.output-block(ξ.ρ.offset.plus(ξ.buffer.size))
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/io/stdin.phi b/data/0.49.3/org/eolang/io/stdin.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/io/stdin.phi
@@ -0,0 +1,45 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        stdin ↦ ⟦
+          φ ↦ ξ.all-lines,
+          all-lines ↦ ⟦
+            φ ↦ ξ.rec-read(ξ.ρ.next-line, Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.true),
+            separator ↦ Φ̇.dataized(Φ̇.sys.line-separator).as-bytes,
+            rec-read(line, buffer, first) ↦ ⟦
+              φ ↦ ξ.line.length.eq(0).if(
+                Φ̇.string(ξ.buffer),
+                ξ.ρ.rec-read(
+                  ξ.ρ.ρ.next-line,
+                  ξ.first.if(
+                    ξ.buffer.concat(ξ.line), ξ.buffer.concat(ξ.ρ.separator).concat(ξ.line)
+                  ),
+                  Φ̇.false
+                )
+              )
+            ⟧
+          ⟧,
+          next-line ↦ ⟦
+            first ↦ Φ̇.io.console.read(1).self,
+            φ ↦ ξ.first.as-bytes.size.eq(0).if(
+              "", ξ.rec-read(ξ.first, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+            ),
+            rec-read(input, buffer) ↦ ⟦
+              char ↦ ξ.input.as-bytes,
+              next ↦ ξ.input.read(1).self,
+              φ ↦ ξ.char.eq(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).or(
+                ξ.char.eq("\r").and(ξ.next.as-bytes.eq("\n")).or(ξ.char.eq("\n"))
+              ).if(
+                Φ̇.string(ξ.buffer), ξ.ρ.rec-read(ξ.next, ξ.buffer.concat(ξ.char))
+              )
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/io/stdout.phi b/data/0.49.3/org/eolang/io/stdout.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/io/stdout.phi
@@ -0,0 +1,18 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        stdout(text) ↦ ⟦
+          φ ↦ Φ̇.seq(
+            Φ̇.tuple(
+              Φ̇.tuple(Φ̇.tuple.empty, Φ̇.io.console.write(ξ.text)), Φ̇.true
+            )
+          )
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/io/tee-input.phi b/data/0.49.3/org/eolang/io/tee-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/io/tee-input.phi
@@ -0,0 +1,34 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      io ↦ ⟦
+        tee-input(input, output) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.input, ξ.ρ.output, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(
+              ξ.size
+            ).self,
+            input-block(input, output, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                read-bytes ↦ ξ.ρ.input.read(ξ.size).read.ρ,
+                written-bytes ↦ ξ.ρ.output.write(ξ.read-bytes).write.ρ,
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.written-bytes),
+                    ξ.ρ.ρ.input-block(
+                      ξ.read-bytes, ξ.written-bytes, ξ.read-bytes.as-bytes
+                    )
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/malloc.phi b/data/0.49.3/org/eolang/malloc.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/malloc.phi
@@ -0,0 +1,55 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      malloc ↦ ⟦
+        empty(scope) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.malloc.of(0, ξ.scope)
+        ⟧,
+        for(object, scope) ↦ ⟦
+          bts ↦ Φ̇.dataized(ξ.object).as-bytes,
+          φ ↦ ξ.ρ.ρ.malloc.of(ξ.bts.size, ξ.auto-named-attr-at-96-9),
+          auto-named-attr-at-96-9(m) ↦ ⟦
+            φ ↦ Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.m.write(0, ξ.ρ.bts)), ξ.ρ.scope(ξ.m)
+              )
+            )
+          ⟧
+        ⟧,
+        of(size, scope) ↦ ⟦
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_malloc_of_φ
+          ⟧,
+          allocated(id) ↦ ⟦
+            φ ↦ ξ.get,
+            get ↦ ξ.read(0, ξ.size),
+            size ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_size
+            ⟧,
+            resized(new-size) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_resized
+            ⟧,
+            copy(source, target, length) ↦ ⟦
+              φ ↦ ξ.ρ.write(ξ.target, ξ.ρ.read(ξ.source, ξ.length))
+            ⟧,
+            read(offset, length) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_read
+            ⟧,
+            write(offset, data) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_write
+            ⟧,
+            put(object) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.write(0, ξ.object)), ξ.ρ.get
+                )
+              )
+            ⟧
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/math/angle.phi b/data/0.49.3/org/eolang/math/angle.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/math/angle.phi
@@ -0,0 +1,30 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        angle(value) ↦ ⟦
+          φ ↦ ξ.value,
+          in-degrees ↦ ξ.ρ.angle(ξ.ρ.times(180).div(Φ̇.math.pi)),
+          in-radians ↦ ξ.ρ.angle(ξ.times(Φ̇.math.pi).div(180)),
+          sin ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_sin
+          ⟧,
+          cos ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_cos
+          ⟧,
+          tan ↦ ⟦
+            cosine ↦ Φ̇.dataized(ξ.ρ.cos).as-bytes,
+            φ ↦ ξ.cosine.eq(0).if(Φ̇.nan, ξ.ρ.sin.div(ξ.cosine))
+          ⟧,
+          ctan ↦ ⟦
+            sine ↦ Φ̇.dataized(ξ.ρ.sin).as-bytes,
+            φ ↦ ξ.sine.eq(0).if(Φ̇.nan, ξ.ρ.cos.div(ξ.sine))
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/math/e.phi b/data/0.49.3/org/eolang/math/e.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/math/e.phi
@@ -0,0 +1,12 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        e ↦ 2.718281828459045,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/math/integral.phi b/data/0.49.3/org/eolang/math/integral.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/math/integral.phi
@@ -0,0 +1,66 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        integral(fun, a, b, n) ↦ ⟦
+          subsection(a, b) ↦ ⟦
+            φ ↦ ξ.b.minus(ξ.a).div(6).times(
+              ξ.ρ.fun(ξ.a).plus(
+                4.times(ξ.ρ.fun(0.5.times(ξ.a.plus(ξ.b)))).plus(ξ.ρ.fun(ξ.b))
+              )
+            )
+          ⟧,
+          φ ↦ Φ̇.malloc.of(8, ξ.auto-named-attr-at-50-11).as-number,
+          auto-named-attr-at-50-11(sum) ↦ ⟦
+            φ ↦ Φ̇.malloc.for(ξ.ρ.a, ξ.auto-named-attr-at-53-16),
+            auto-named-attr-at-53-16(left) ↦ ⟦
+              right ↦ ξ.ρ.ρ.b,
+              step ↦ ξ.right.minus(ξ.left).div(ξ.ρ.ρ.n).as-number,
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple.empty,
+                    Φ̇.while(
+                      ξ.auto-named-attr-at-59-21,
+                      ⟦
+                        φ ↦ Φ̇.true,
+                        i ↦ ∅
+                      ⟧
+                    )
+                  ),
+                  ξ.ρ.sum
+                )
+              ),
+              auto-named-attr-at-59-21(i) ↦ ⟦
+                φ ↦ ξ.ρ.left.as-number.plus(ξ.ρ.step).lt(ξ.ρ.right).if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple.empty,
+                          ξ.ρ.ρ.sum.put(
+                            ξ.ρ.ρ.sum.as-number.plus(
+                              ξ.ρ.ρ.ρ.subsection(
+                                ξ.ρ.left.as-number, ξ.ρ.left.as-number.plus(ξ.ρ.step)
+                              )
+                            )
+                          )
+                        ),
+                        ξ.ρ.left.put(ξ.ρ.left.as-number.plus(ξ.ρ.step))
+                      ),
+                      Φ̇.true
+                    )
+                  ),
+                  Φ̇.false
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/math/numbers.phi b/data/0.49.3/org/eolang/math/numbers.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/math/numbers.phi
@@ -0,0 +1,42 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        numbers(sequence) ↦ ⟦
+          φ ↦ ξ.sequence,
+          max ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get max number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.negative-infinity,
+                ⟦
+                  max ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.item.as-number.gt(ξ.max).if(ξ.item, ξ.max)
+                ⟧
+              )
+            )
+          ⟧,
+          min ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get min number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.positive-infinity,
+                ⟦
+                  min ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.min.gt(ξ.item.as-number).if(ξ.item, ξ.min)
+                ⟧
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/math/pi.phi b/data/0.49.3/org/eolang/math/pi.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/math/pi.phi
@@ -0,0 +1,12 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        pi ↦ 3.141592653589793,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/math/random.phi b/data/0.49.3/org/eolang/math/random.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/math/random.phi
@@ -0,0 +1,53 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        random(seed) ↦ ⟦
+          fixed ↦ ξ,
+          φ ↦ ξ.seed.as-number.div(
+            Φ̇.bytes(⟦ Δ ⤍ 00-20-00-00-00-00-00-00 ⟧).as-i64.as-number
+          ),
+          next ↦ ξ.ρ.random(
+            ξ.seed.times(25214903917).plus(11).as-i64.and(
+              Φ̇.bytes(⟦ Δ ⤍ 00-0F-FF-FF-FF-FF-FF-FF ⟧)
+            ).as-i64.as-number
+          ).fixed,
+          pseudo ↦ ⟦
+            const-1 ↦ 35,
+            const-2 ↦ 53,
+            const-3 ↦ 17,
+            one ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-01 ⟧),
+            φ ↦ ξ.ρ.ρ.random(ξ.time-seed),
+            time-seed ↦ ξ.time-bytes.left(ξ.const-1).and(
+              ξ.one.left(ξ.const-2).as-i64.minus(ξ.one).as-bytes
+            ).as-i64.plus(
+              ξ.time-bytes.left(ξ.const-3).and(
+                ξ.one.left(ξ.const-1).as-i64.minus(ξ.one).as-bytes
+              ).as-i64.plus(
+                ξ.time-bytes.and(
+                  ξ.one.left(ξ.const-3).as-i64.minus(ξ.one).as-bytes
+                ).as-i64
+              )
+            ).as-number,
+            time-bytes ↦ Φ̇.sys.os.is-windows.if(
+              Φ̇.sys.win32(
+                "GetSystemTime", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.system-time)
+              ).milliseconds,
+              ⟦
+                timeval ↦ Φ̇.sys.posix(
+                  "gettimeofday", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.timeval)
+                ).output,
+                φ ↦ ξ.timeval.tv-sec.times(1000).plus(
+                  ξ.timeval.tv-usec.as-i64.div(1000.as-i64).as-number
+                )
+              ⟧
+            ).as-i64.as-bytes
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/math/real.phi b/data/0.49.3/org/eolang/math/real.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/math/real.phi
@@ -0,0 +1,49 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      math ↦ ⟦
+        real(num) ↦ ⟦
+          φ ↦ ξ.num,
+          exp ↦ Φ̇.math.real(Φ̇.math.e).pow(ξ.num),
+          mod(x) ↦ ⟦
+            dividend ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            divisor ↦ Φ̇.number(ξ.x.as-bytes),
+            φ ↦ ξ.divisor.eq(0).if(
+              Φ̇.error("Can't calculate mod by zero"),
+              ξ.dividend.gt(0).if(ξ.abs-mod, ξ.abs-mod.neg)
+            ),
+            abs-mod ↦ ⟦
+              dividend-abs ↦ Φ̇.math.real(ξ.ρ.dividend).abs,
+              divisor-abs ↦ Φ̇.math.real(ξ.ρ.divisor).abs,
+              φ ↦ ξ.dividend-abs.minus(
+                ξ.divisor-abs.times(ξ.dividend-abs.div(ξ.divisor-abs).floor)
+              )
+            ⟧
+          ⟧,
+          abs ↦ ⟦
+            value ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            φ ↦ ξ.value.gte(0).if(ξ.value, ξ.value.neg)
+          ⟧,
+          pow(x) ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_pow
+          ⟧,
+          sqrt ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_sqrt
+          ⟧,
+          ln ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_ln
+          ⟧,
+          acos ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_acos
+          ⟧,
+          asin ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_asin
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/nan.phi b/data/0.49.3/org/eolang/nan.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/nan.phi
@@ -0,0 +1,44 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      nan ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F8-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ ξ,
+        is-nan ↦ Φ̇.true,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert NaN to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        times(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        plus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        div(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/negative-infinity.phi b/data/0.49.3/org/eolang/negative-infinity.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/negative-infinity.phi
@@ -0,0 +1,61 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      negative-infinity ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ FF-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.positive-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert negative infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.positive-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.positive-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.positive-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/net/socket.phi b/data/0.49.3/org/eolang/net/socket.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/net/socket.phi
@@ -0,0 +1,535 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      net ↦ ⟦
+        socket(address, port) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win-socket(ξ.address, ξ.port), ξ.posix-socket(ξ.address, ξ.port)
+          ),
+          htons(port) ↦ ⟦
+            bts ↦ ξ.port.as-i16.as-bytes,
+            φ ↦ ξ.bts.and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧)).left(8).or(
+              ξ.bts.right(8).and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧))
+            ).as-i16
+          ⟧,
+          as-input(recv) ↦ ⟦
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ ξ.ρ.ρ.ρ.recv(ξ.size).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          as-output(send) ↦ ⟦
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.send(ξ.buffer)), ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          posix-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.posix(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.af-inet), Φ̇.sys.posix.sock-stream
+                ),
+                Φ̇.sys.posix.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.posix(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.posix.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' posix syscall, reason: '%s'",
+                  Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.strerror.code)
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.posix.sockaddr-in(
+              Φ̇.sys.posix.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.posix(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.posix(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            strerror ↦ ⟦
+              φ ↦ Φ̇.sys.posix(
+                "strerror",
+                Φ̇.tuple(
+                  Φ̇.tuple.empty, Φ̇.sys.posix("errno", Φ̇.tuple.empty).code
+                )
+              )
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.posix("close", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)).code,
+              φ ↦ ξ.closed.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a posix socket '%d', reason: '%s'",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.strerror.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              φ ↦ ξ.ρ.sd.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't create a posix socket, reason: '%s'",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.strerror.code)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.scope,
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.ρ.closed-socket(ξ.ρ.sd)
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-276-10),
+              auto-named-attr-at-276-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.posix(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on posix socket '%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-300-10),
+              auto-named-attr-at-300-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.posix(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.posix(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind posix socket '%d' to '%s:%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', reason: '%s'",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.strerror.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-325-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-325-22 ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.posix(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on posix socket '%d', reason: %s",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.strerror.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          win-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.win32(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.af-inet), Φ̇.sys.win32.sock-stream
+                ),
+                Φ̇.sys.win32.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.win32(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.win32.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' win32 function call, WSA error code: %d",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.last-error.code
+                  )
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.win32.sockaddr-in(
+              Φ̇.sys.win32.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.win32(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.win32(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            last-error ↦ ⟦
+              φ ↦ Φ̇.sys.win32("WSAGetLastError", Φ̇.tuple.empty)
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.win32(
+                "closesocket", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)
+              ).code,
+              φ ↦ ξ.closed.eq(Φ̇.sys.win32.socket-error).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a win32 socket '%d', WSA error code: %d",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.last-error.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              started-up ↦ Φ̇.sys.win32(
+                "WSAStartup", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.winsock-version-2-2)
+              ).code,
+              cleaned-up ↦ Φ̇.sys.win32("WSACleanup", Φ̇.tuple.empty).code,
+              φ ↦ ξ.started-up.eq(0).not.if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't initialize Winsock via 'WSAStartup' call, WSA error code: %d",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.started-up)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.ρ.sd.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Couldn't create a win32 socket, WSA error code: %d",
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.last-error.code)
+                      )
+                    ),
+                    Φ̇.try(
+                      ξ.scope,
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.ρ.closed-socket(ξ.ρ.sd)
+                    )
+                  ),
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.cleaned-up.eq(Φ̇.sys.win32.socket-error).if(
+                    Φ̇.error("Couldn't cleanup Winsock resources"), Φ̇.true
+                  )
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-485-10),
+              auto-named-attr-at-485-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.win32(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on win32 socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-509-10),
+              auto-named-attr-at-509-10 ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.win32(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.win32(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind win32 socket '%d' to '%s:%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', WSA error code: %d",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.last-error.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-534-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-534-22 ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.win32(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on win32 socket '%d', WSA error code: %d",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.last-error.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/number.phi b/data/0.49.3/org/eolang/number.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/number.phi
@@ -0,0 +1,74 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      number(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-number ↦ ξ,
+        neg ↦ ξ.times(-1),
+        as-i32 ↦ ξ.as-i64.as-i32,
+        as-i16 ↦ ξ.as-i32.as-i16,
+        is-nan ↦ ξ.as-bytes.eq(Φ̇.nan.as-bytes),
+        as-i64 ↦ ⟦
+          λ ⤍ Lorg_eolang_number_as_i64
+        ⟧,
+        eq(x) ↦ ⟦
+          x-as-bytes ↦ Φ̇.dataized(ξ.x).as-bytes,
+          self-as-bytes ↦ ξ.ρ.as-bytes,
+          pos-zero-as-bytes ↦ 0.as-bytes,
+          neg-zero-as-bytes ↦ -0.as-bytes,
+          φ ↦ ξ.ρ.is-nan.or(Φ̇.number(ξ.x-as-bytes).is-nan).if(
+            Φ̇.false,
+            ξ.x-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+              ξ.x-as-bytes.eq(ξ.neg-zero-as-bytes)
+            ).and(
+              ξ.self-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+                ξ.self-as-bytes.eq(ξ.neg-zero-as-bytes)
+              )
+            ).or(ξ.self-as-bytes.eq(ξ.x-as-bytes))
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.gt(ξ.ρ.minus(Φ̇.number(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(Φ̇.number(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_div
+        ⟧,
+        floor ↦ ⟦
+          λ ⤍ Lorg_eolang_number_floor
+        ⟧,
+        is-integer ↦ ⟦
+          φ ↦ ξ.ρ.is-finite.and(ξ.ρ.eq(ξ.ρ.floor))
+        ⟧,
+        is-finite ↦ ⟦
+          φ ↦ ξ.ρ.is-nan.not.and(
+            ξ.ρ.eq(Φ̇.positive-infinity).or(ξ.ρ.eq(Φ̇.negative-infinity)).not
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/positive-infinity.phi b/data/0.49.3/org/eolang/positive-infinity.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/positive-infinity.phi
@@ -0,0 +1,61 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      positive-infinity ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.negative-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert positive infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        gt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.negative-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.negative-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.negative-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/seq.phi b/data/0.49.3/org/eolang/seq.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/seq.phi
@@ -0,0 +1,17 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      seq(steps) ↦ ⟦
+        φ ↦ ξ.steps.length.eq(0).if(Φ̇.true, ξ.loop(0)),
+        max-len ↦ Φ̇.dataized(ξ.steps.length.minus(1)).as-bytes,
+        loop(index) ↦ ⟦
+          φ ↦ ξ.index.lt(ξ.ρ.max-len).and(
+            Φ̇.dataized(ξ.ρ.steps.at(ξ.index)).as-bool.or(Φ̇.true)
+          ).if(ξ.ρ.loop(ξ.index.plus(1)), ξ.ρ.steps.at(ξ.index))
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/string.phi b/data/0.49.3/org/eolang/string.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/string.phi
@@ -0,0 +1,155 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      string(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        length ↦ ⟦
+          size ↦ ξ.ρ.as-bytes.size,
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          φ ↦ ξ.size.eq(0).if(0, ξ.rec-length(0, 0)),
+          increase-length(index, char-size, len) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-length(ξ.index.plus(ξ.char-size), ξ.len.plus(1))
+            )
+          ⟧,
+          rec-length(index, accum) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.accum,
+              ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                ξ.ρ.increase-length(ξ.index, 1, ξ.accum),
+                ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                  ξ.ρ.increase-length(ξ.index, 2, ξ.accum),
+                  ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                    ξ.ρ.increase-length(ξ.index, 3, ξ.accum),
+                    ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                      ξ.ρ.increase-length(ξ.index, 4, ξ.accum),
+                      Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Unknown byte format (%x), can't recognize character",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        slice(start, len) ↦ ⟦
+          start-bytes ↦ Φ̇.dataized(ξ.start).as-bytes,
+          len-bytes ↦ Φ̇.dataized(ξ.len).as-bytes,
+          num-start ↦ Φ̇.number(ξ.start-bytes),
+          num-len ↦ Φ̇.number(ξ.len-bytes),
+          size ↦ ξ.ρ.as-bytes.size,
+          end ↦ ξ.num-start.plus(ξ.num-len),
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          bts-start ↦ Φ̇.dataized(
+            ξ.rec-index(
+              0,
+              0,
+              ξ.num-start,
+              Φ̇.txt.sprintf(
+                "Start index (%d) is out of string bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            )
+          ).as-bytes,
+          bts-length ↦ ξ.rec-index(
+            Φ̇.number(ξ.bts-start),
+            0,
+            ξ.num-len,
+            Φ̇.txt.sprintf(
+              "Start index + length to slice (%d) is out of string bounds",
+              Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start.plus(ξ.num-len))
+            )
+          ).minus(ξ.bts-start),
+          φ ↦ ξ.num-start.lt(0).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Start index must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            ),
+            ξ.num-len.lt(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Length to slice must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-len)
+                )
+              ),
+              ξ.num-len.eq(0).if(
+                "", Φ̇.string(ξ.ρ.as-bytes.slice(ξ.bts-start, ξ.bts-length))
+              )
+            )
+          ),
+          increase(index, char-size, accum, result, cause) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-index(
+                ξ.index.plus(ξ.char-size), ξ.accum.plus(1), ξ.result, ξ.cause
+              )
+            )
+          ⟧,
+          rec-index(index, accum, result, cause) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.accum.eq(ξ.result).if(
+              ξ.index,
+              ξ.index.eq(ξ.ρ.size).if(
+                Φ̇.error(ξ.cause),
+                ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                  ξ.ρ.increase(ξ.index, 1, ξ.accum, ξ.result, ξ.cause),
+                  ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                    ξ.ρ.increase(ξ.index, 2, ξ.accum, ξ.result, ξ.cause),
+                    ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                      ξ.ρ.increase(ξ.index, 3, ξ.accum, ξ.result, ξ.cause),
+                      ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                        ξ.ρ.increase(ξ.index, 4, ξ.accum, ξ.result, ξ.cause),
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Unknown byte format (%x), can't recognize character",
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                          )
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/structs/bytes-as-array.phi b/data/0.49.3/org/eolang/structs/bytes-as-array.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/structs/bytes-as-array.phi
@@ -0,0 +1,23 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        bytes-as-array(bts) ↦ ⟦
+          bytes-size ↦ Φ̇.dataized(ξ.bts.size).as-bytes,
+          φ ↦ ξ.slice-byte(Φ̇.tuple.empty, 0),
+          slice-byte(tup, index) ↦ ⟦
+            φ ↦ ξ.index.lt(ξ.ρ.bytes-size).if(
+              ξ.ρ.slice-byte(
+                ξ.tup.with(ξ.ρ.bts.slice(ξ.index, 1)), ξ.index.plus(1)
+              ),
+              ξ.tup
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/structs/hash-code-of.phi b/data/0.49.3/org/eolang/structs/hash-code-of.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/structs/hash-code-of.phi
@@ -0,0 +1,30 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        hash-code-of(input) ↦ ⟦
+          input-as-bytes ↦ Φ̇.dataized(ξ.input.as-bytes).as-bytes,
+          size ↦ Φ̇.dataized(ξ.input-as-bytes.size).as-bytes,
+          magic-number ↦ 31.as-i64,
+          φ ↦ ξ.rec-hash-code(0, 0),
+          rec-hash-code(acc, index) ↦ ⟦
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.acc.as-number,
+              ξ.ρ.rec-hash-code(
+                ξ.ρ.magic-number.times(ξ.acc).plus(
+                  Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(
+                    ξ.ρ.input-as-bytes.slice(ξ.index, 1)
+                  ).as-i64
+                ),
+                ξ.index.plus(1)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/structs/list.phi b/data/0.49.3/org/eolang/structs/list.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/structs/list.phi
@@ -0,0 +1,194 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        list(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-empty ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.origin.length)
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.ρ.origin.with(ξ.x))
+          ⟧,
+          withi(index, item) ↦ ⟦
+            φ ↦ ξ.ρ.head(ξ.index).with(ξ.item).concat(
+              ξ.ρ.tail(ξ.ρ.origin.length.minus(ξ.index))
+            )
+          ⟧,
+          reducedi(start, func) ↦ ⟦
+            origin-len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.origin-len).if(ξ.start, ξ.rec-reduced(ξ.start, 0.as-bytes)),
+            rec-reduced(accum, index) ↦ ⟦
+              idx-as-number ↦ ξ.index.as-number,
+              next-index ↦ Φ̇.dataized(1.plus(ξ.idx-as-number)).as-bytes,
+              φ ↦ ξ.next-index.eq(ξ.ρ.origin-len).if(
+                ξ.accumulated, ξ.ρ.rec-reduced(ξ.accumulated, ξ.next-index)
+              ),
+              accumulated ↦ ξ.ρ.func(
+                ξ.accum, ξ.ρ.ρ.origin.at(ξ.idx-as-number), ξ.idx-as-number
+              )
+            ⟧
+          ⟧,
+          reduced(start, func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(ξ.start, ξ.auto-named-attr-at-83-42),
+            auto-named-attr-at-83-42(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.accum, ξ.item)
+            ⟧
+          ⟧,
+          mappedi(func) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-93-24)
+            ),
+            auto-named-attr-at-93-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.with(ξ.ρ.func(ξ.item, ξ.idx))
+            ⟧
+          ⟧,
+          mapped(func) ↦ ⟦
+            φ ↦ ξ.ρ.mappedi(ξ.auto-named-attr-at-103-30),
+            auto-named-attr-at-103-30(item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          eachi(func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-113-22),
+            auto-named-attr-at-113-22(acc, item, index) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.acc), ξ.ρ.func(ξ.item, ξ.index)
+                )
+              )
+            ⟧
+          ⟧,
+          each(func) ↦ ⟦
+            φ ↦ ξ.ρ.eachi(ξ.auto-named-attr-at-124-32),
+            auto-named-attr-at-124-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          withouti(i) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-131-24)
+            ),
+            auto-named-attr-at-131-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.i.eq(ξ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          without(element) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-142-20)
+            ),
+            auto-named-attr-at-142-20(accum, item) ↦ ⟦
+              φ ↦ ξ.ρ.element.eq(ξ.item).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          eq(other) ↦ ⟦
+            φ ↦ ξ.ρ.origin.length.eq(ξ.other.length).and(
+              ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-157-24)
+            ),
+            auto-named-attr-at-157-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.and(ξ.item.eq(ξ.ρ.other.at(ξ.idx)))
+            ⟧
+          ⟧,
+          concat(passed) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.passed).reduced(
+              ξ.ρ,
+              ⟦
+                φ ↦ ξ.accum.with(ξ.item),
+                accum ↦ ∅,
+                item ↦ ∅
+              ⟧
+            )
+          ⟧,
+          index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-177-24),
+            auto-named-attr-at-177-24(accum, item, index) ↦ ⟦
+              φ ↦ -1.eq(ξ.accum).and(ξ.item.eq(ξ.ρ.wanted)).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          last-index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-190-24),
+            auto-named-attr-at-190-24(accum, item, index) ↦ ⟦
+              φ ↦ ξ.item.eq(ξ.ρ.wanted).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          contains(element) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.element)).not
+          ⟧,
+          sorted ↦ ⟦
+            φ ↦ ξ.ρ
+          ⟧,
+          filteredi(func) ↦ ⟦
+            origin-length ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ ξ.ρ.ρ.list(ξ.rec-filtered(0.as-bytes, Φ̇.tuple.empty)),
+            rec-filtered(idx-as-bytes, accum) ↦ ⟦
+              original ↦ ξ.ρ.ρ.origin,
+              index ↦ ξ.idx-as-bytes.as-number,
+              item ↦ ξ.ρ.ρ.origin.at(ξ.index),
+              φ ↦ ξ.idx-as-bytes.eq(ξ.ρ.origin-length).if(
+                ξ.accum,
+                ξ.ρ.rec-filtered(
+                  1.plus(ξ.index).as-bytes,
+                  ξ.ρ.func(ξ.item, ξ.index).if(ξ.accum.with(ξ.item), ξ.accum)
+                )
+              )
+            ⟧
+          ⟧,
+          filtered(func) ↦ ⟦
+            φ ↦ ξ.ρ.filteredi(ξ.auto-named-attr-at-243-32),
+            auto-named-attr-at-243-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          head(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            φ ↦ Φ̇.switch(
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty,
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, 0.eq(ξ.idx)), ξ.ρ.ρ.list(Φ̇.tuple.empty)
+                      )
+                    ),
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, 0.gt(ξ.idx)), ξ.ρ.tail(ξ.index.as-number.neg)
+                    )
+                  ),
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin.length.lte(ξ.idx)), ξ.ρ
+                  )
+                ),
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.true),
+                  ξ.ρ.ρ.list(
+                    ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-264-32)
+                  )
+                )
+              )
+            ),
+            auto-named-attr-at-264-32(accum, item, index) ↦ ⟦
+              φ ↦ ξ.index.gte(ξ.ρ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          tail(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            start ↦ Φ̇.dataized(ξ.ρ.origin.length.minus(ξ.idx.as-number)).as-bytes,
+            φ ↦ 0.gt(ξ.start).if(
+              ξ.ρ,
+              ξ.ρ.ρ.list(
+                ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-280-26)
+              )
+            ),
+            auto-named-attr-at-280-26(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.idx.gte(ξ.ρ.start).if(ξ.accum.with(ξ.item), ξ.accum)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/structs/map.phi b/data/0.49.3/org/eolang/structs/map.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/structs/map.phi
@@ -0,0 +1,122 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        map(pairs) ↦ ⟦
+          φ ↦ ξ.auto-named-attr-at-37-6.initialized,
+          entry(key, value) ↦ ⟦⟧,
+          initialized(entries) ↦ ⟦
+            initialized ↦ ξ,
+            size ↦ ξ.entries.length,
+            keys ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.key,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            values ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.value,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            has(key) ↦ ⟦
+              φ ↦ ξ.ρ.found(ξ.key).exists
+            ⟧,
+            found(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.size.eq(0).if(ξ.not-found, ξ.rec-key-search(ξ.not-found, 0)),
+              rec-key-search(found, index) ↦ ⟦
+                entry ↦ ξ.ρ.ρ.entries.at(ξ.index),
+                φ ↦ ξ.found.exists.or(ξ.ρ.ρ.size.eq(ξ.index)).if(
+                  ξ.found,
+                  ξ.ρ.rec-key-search(
+                    ξ.ρ.hash.eq(ξ.entry.hash).if(
+                      ξ.auto-named-attr-at-133-54, ξ.found
+                    ),
+                    ξ.index.plus(1)
+                  )
+                ),
+                auto-named-attr-at-133-54 ↦ ⟦
+                  exists ↦ Φ̇.true,
+                  get ↦ ξ.ρ.entry.value
+                ⟧
+              ⟧,
+              not-found ↦ ⟦
+                exists ↦ Φ̇.false,
+                get ↦ Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Object by hash code %d from given key does not exists",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.hash)
+                  )
+                )
+              ⟧
+            ⟧,
+            with(key, value) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-153-50
+                ).origin.with(ξ.auto-named-attr-at-154-12)
+              ),
+              auto-named-attr-at-153-50(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧,
+              auto-named-attr-at-154-12 ↦ ⟦
+                key ↦ ξ.ρ.key,
+                value ↦ ξ.ρ.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧,
+            without(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-167-48
+                ).origin
+              ),
+              auto-named-attr-at-167-48(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧
+            ⟧
+          ⟧,
+          auto-named-attr-at-37-6 ↦ ⟦
+            pairs-size ↦ Φ̇.dataized(ξ.ρ.pairs.length).as-bytes,
+            φ ↦ ξ.ρ.initialized(
+              ξ.pairs-size.eq(0).if(
+                Φ̇.tuple.empty,
+                ξ.rec-rebuild(Φ̇.tuple.empty, 0, Φ̇.structs.list(Φ̇.tuple.empty))
+              )
+            ),
+            rec-rebuild(accum, index, hashes) ↦ ⟦
+              entry ↦ ξ.ρ.ρ.pairs.at(ξ.index),
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.entry.key)).as-bytes,
+              φ ↦ ξ.ρ.pairs-size.eq(ξ.index).if(
+                ξ.accum,
+                ξ.ρ.rec-rebuild(
+                  ξ.hashes.contains(ξ.hash).if(
+                    ξ.accum, ξ.accum.with(ξ.auto-named-attr-at-59-18)
+                  ),
+                  ξ.index.plus(1),
+                  ξ.hashes.with(ξ.hash)
+                )
+              ),
+              auto-named-attr-at-59-18 ↦ ⟦
+                key ↦ ξ.ρ.entry.key,
+                value ↦ ξ.ρ.entry.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/structs/range-of-ints.phi b/data/0.49.3/org/eolang/structs/range-of-ints.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/structs/range-of-ints.phi
@@ -0,0 +1,26 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        range-of-ints(start, end) ↦ ⟦
+          φ ↦ 0.eq(ξ.start).or(1.eq(ξ.start.div(ξ.start))).and(
+            0.eq(ξ.end).or(1.eq(ξ.end.div(ξ.end)))
+          ).if(
+            Φ̇.structs.range(ξ.auto-named-attr-at-42-8, ξ.end),
+            Φ̇.error("Some of the arguments are not integers")
+          ),
+          auto-named-attr-at-42-8 ↦ ⟦
+            build(num) ↦ ⟦
+              φ ↦ ξ.num,
+              next ↦ ξ.ρ.build(1.plus(ξ.φ))
+            ⟧,
+            φ ↦ ξ.build(ξ.ρ.start)
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/structs/range.phi b/data/0.49.3/org/eolang/structs/range.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/structs/range.phi
@@ -0,0 +1,23 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        range(start, end) ↦ ⟦
+          φ ↦ Φ̇.structs.list(
+            ξ.start.lt(ξ.end).if(
+              ξ.appended(Φ̇.tuple(Φ̇.tuple.empty, ξ.start), ξ.start.next), Φ̇.tuple.empty
+            )
+          ),
+          appended(acc, current) ↦ ⟦
+            φ ↦ ξ.current.lt(ξ.ρ.end).if(
+              ξ.ρ.appended(ξ.acc.with(ξ.current), ξ.current.next), ξ.acc
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/structs/set.phi b/data/0.49.3/org/eolang/structs/set.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/structs/set.phi
@@ -0,0 +1,37 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      structs ↦ ⟦
+        set(lst) ↦ ⟦
+          φ ↦ ξ.initialized(
+            Φ̇.structs.map(
+              Φ̇.structs.list(ξ.lst).mapped(
+                ⟦
+                  φ ↦ Φ̇.structs.map.entry(ξ.item, Φ̇.true),
+                  item ↦ ∅
+                ⟧
+              ).origin
+            )
+          ).initialized,
+          initialized(map) ↦ ⟦
+            initialized ↦ ξ,
+            φ ↦ ξ.map.keys,
+            size ↦ ξ.map.size,
+            with(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.with(ξ.item, Φ̇.true))
+            ⟧,
+            without(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.without(ξ.item))
+            ⟧,
+            has(item) ↦ ⟦
+              φ ↦ ξ.ρ.map.has(ξ.item)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/switch.phi b/data/0.49.3/org/eolang/switch.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/switch.phi
@@ -0,0 +1,18 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      switch(cases) ↦ ⟦
+        len ↦ Φ̇.dataized(ξ.cases.length).as-bytes,
+        φ ↦ ξ.len.eq(0).if(Φ̇.error("switch cases are empty"), ξ.case-at(0)),
+        case-at(index) ↦ ⟦
+          case ↦ ξ.ρ.cases.at(ξ.index),
+          φ ↦ ξ.index.eq(ξ.ρ.len).if(
+            Φ̇.true, ξ.case.at(0).if(ξ.case.at(1), ξ.ρ.case-at(ξ.index.plus(1)))
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/sys/getenv.phi b/data/0.49.3/org/eolang/sys/getenv.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/sys/getenv.phi
@@ -0,0 +1,19 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        getenv(name) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            Φ̇.sys.win32(
+              "GetEnvironmentVariable", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.name), 512)
+            ),
+            Φ̇.sys.posix("getenv", Φ̇.tuple(Φ̇.tuple.empty, ξ.name))
+          ).output
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/sys/line-separator.phi b/data/0.49.3/org/eolang/sys/line-separator.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/sys/line-separator.phi
@@ -0,0 +1,14 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        line-separator ↦ ⟦
+          φ ↦ Φ̇.string(Φ̇.sys.os.is-windows.if("\r\n", "\n").as-bytes)
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/sys/os.phi b/data/0.49.3/org/eolang/sys/os.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/sys/os.phi
@@ -0,0 +1,23 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        os ↦ ⟦
+          φ ↦ ξ.name,
+          is-windows ↦ ⟦
+            os-name ↦ Φ̇.dataized(ξ.ρ.name).as-bytes,
+            φ ↦ ξ.os-name.size.gt(6).and(ξ.os-name.slice(0, 7).eq("Windows"))
+          ⟧,
+          is-linux ↦ Φ̇.txt.regex("/linux/i").matches(ξ.name).as-bool,
+          is-macos ↦ Φ̇.txt.regex("/mac/i").matches(ξ.name).as-bool,
+          name ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_os_name
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/sys/posix.phi b/data/0.49.3/org/eolang/sys/posix.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/sys/posix.phi
@@ -0,0 +1,35 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        posix(name, args) ↦ ⟦
+          stdin-fileno ↦ 0,
+          stdout-fileno ↦ 1,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          inaddr-none ↦ -1,
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_posix_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          timeval(tv-sec, tv-usec) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/sys/win32.phi b/data/0.49.3/org/eolang/sys/win32.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/sys/win32.phi
@@ -0,0 +1,38 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      sys ↦ ⟦
+        win32(name, args) ↦ ⟦
+          std-input-handle ↦ -10,
+          std-output-handle ↦ -11,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          invalid-socket ↦ -1,
+          socket-error ↦ -1,
+          inaddr-none ↦ -1,
+          winsock-version-2-2 ↦ Φ̇.bytes(⟦ Δ ⤍ 02-02 ⟧),
+          φ ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_win32_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          system-time(year, month, day, day-of-week, hour, minute, second, milliseconds) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/true.phi b/data/0.49.3/org/eolang/true.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/true.phi
@@ -0,0 +1,21 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      true ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧),
+        not ↦ Φ̇.false,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.left
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/try.phi b/data/0.49.3/org/eolang/try.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/try.phi
@@ -0,0 +1,11 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      try(main, catch, finally) ↦ ⟦
+        λ ⤍ Lorg_eolang_try
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/tuple.phi b/data/0.49.3/org/eolang/tuple.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/tuple.phi
@@ -0,0 +1,39 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      tuple(head, tail) ↦ ⟦
+        empty ↦ ⟦
+          length ↦ 0,
+          at(i) ↦ ⟦
+            φ ↦ Φ̇.error("Can't get an object from the empty tuple")
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+          ⟧
+        ⟧,
+        length ↦ ⟦
+          len ↦ Φ̇.dataized(ξ.ρ.head.length.plus(1)).as-bytes,
+          φ ↦ Φ̇.number(ξ.len)
+        ⟧,
+        at(i) ↦ ⟦
+          len ↦ ξ.ρ.length,
+          idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+          index ↦ Φ̇.dataized(0.gt(ξ.idx).if(ξ.len.plus(ξ.idx), ξ.idx)).as-bytes,
+          φ ↦ 0.gt(ξ.index).or(ξ.len.lte(ξ.index)).if(
+            Φ̇.error("Given index is out of tuple bounds"), ξ.at-fast(ξ.ρ, ξ.len)
+          ),
+          at-fast(tup, len) ↦ ⟦
+            φ ↦ ξ.len.plus(-1).gt(ξ.ρ.index).if(
+              ξ.ρ.at-fast(ξ.tup.head, ξ.len.plus(-1)), ξ.tup.tail
+            )
+          ⟧
+        ⟧,
+        with(x) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/txt/regex.phi b/data/0.49.3/org/eolang/txt/regex.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/txt/regex.phi
@@ -0,0 +1,56 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        regex(expression) ↦ ⟦
+          φ ↦ ξ.compiled,
+          compiled ↦ ⟦
+            λ ⤍ Lorg_eolang_txt_regex_compiled
+          ⟧,
+          pattern(serialized) ↦ ⟦
+            matches(txt) ↦ ⟦
+              φ ↦ ξ.ρ.match(ξ.txt).next.exists
+            ⟧,
+            match(txt) ↦ ⟦
+              next ↦ ξ.matched-from-index(1, 0).matched,
+              matched-from-index(position, start) ↦ ⟦
+                λ ⤍ Lorg_eolang_txt_regex_pattern_match_matched_from_index
+              ⟧,
+              matched(position, start, from, to, groups) ↦ ⟦
+                matched ↦ ξ,
+                groups-count ↦ ξ.groups.length,
+                exists ↦ ξ.start.gte(0),
+                next ↦ ξ.exists.if(
+                  ξ.ρ.matched-from-index(ξ.position.plus(1), ξ.to).matched,
+                  Φ̇.error("Matched block does not exist, can't get next")
+                ),
+                text ↦ ξ.exists.if(
+                  ξ.group(0), Φ̇.error("Matched block does not exist, can't get text")
+                ),
+                group(index) ↦ ⟦
+                  φ ↦ ξ.ρ.groups.at(ξ.index)
+                ⟧
+              ⟧,
+              not-matched(position) ↦ ⟦
+                φ ↦ ξ.ρ.matched(
+                  ξ.position,
+                  -1,
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'from' position"
+                  ),
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'to' position"
+                  ),
+                  Φ̇.error("Matched block does not exist, can't get groups")
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/txt/sprintf.phi b/data/0.49.3/org/eolang/txt/sprintf.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/txt/sprintf.phi
@@ -0,0 +1,14 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        sprintf(format, args) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sprintf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/txt/sscanf.phi b/data/0.49.3/org/eolang/txt/sscanf.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/txt/sscanf.phi
@@ -0,0 +1,14 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        sscanf(format, read) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sscanf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/txt/text.phi b/data/0.49.3/org/eolang/txt/text.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/txt/text.phi
@@ -0,0 +1,275 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      txt ↦ ⟦
+        text(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-alphanumeric ↦ Φ̇.txt.regex("/^[A-Za-z0-9]+$/").matches(ξ.origin),
+          is-alpha ↦ Φ̇.txt.regex("/^[a-zA-Z]+$/").matches(ξ.origin),
+          is-ascii ↦ Φ̇.txt.regex("/^[\\x00-\\x7F]*$/").matches(ξ.origin),
+          slice(start, len) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.text(ξ.ρ.origin.slice(ξ.start, ξ.len))
+          ⟧,
+          trimmed-left ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.first-non-space-index(0)).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(ξ.idx, Φ̇.number(ξ.len).minus(Φ̇.number(ξ.idx)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.index,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(1)), ξ.index
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed-right ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(0, ξ.first-non-space-index(Φ̇.number(ξ.len).plus(-1)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ -1.eq(ξ.index).if(
+                0,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(-1)), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.length).if(ξ.ρ, ξ.ρ.trimmed-left.trimmed-right)
+          ⟧,
+          joined(items) ↦ ⟦
+            delimiter ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            first ↦ ξ.items.at(0),
+            len ↦ Φ̇.dataized(ξ.items.length).as-bytes,
+            not-empty ↦ Φ̇.dataized(
+              1.eq(ξ.len).if(
+                ξ.first, ξ.first.as-bytes.concat(ξ.with-delimiter("".as-bytes, 1))
+              )
+            ).as-bytes,
+            φ ↦ ξ.ρ.ρ.text(0.eq(ξ.len).if("", Φ̇.string(ξ.not-empty))),
+            with-delimiter(acc, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.acc,
+                ξ.ρ.with-delimiter(
+                  ξ.acc.concat(ξ.ρ.delimiter.concat(ξ.ρ.items.at(ξ.index))), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          repeated(times) ↦ ⟦
+            bts ↦ Φ̇.dataized(ξ.ρ.origin.as-bytes).as-bytes,
+            amount ↦ Φ̇.dataized(ξ.times).as-bytes,
+            φ ↦ 0.gt(ξ.amount).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't repeat text %d times", Φ̇.tuple(Φ̇.tuple.empty, ξ.amount)
+                )
+              ),
+              ξ.ρ.ρ.text(
+                0.eq(ξ.amount).if("", Φ̇.string(ξ.rec-repeated(ξ.bts, 1)))
+              )
+            ),
+            rec-repeated(accum, index) ↦ ⟦
+              φ ↦ ξ.ρ.amount.eq(ξ.index).if(
+                ξ.accum, ξ.ρ.rec-repeated(ξ.accum.concat(ξ.ρ.bts), ξ.index.plus(1))
+              )
+            ⟧
+          ⟧,
+          contains(substring) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.substring)).not
+          ⟧,
+          ends-with(substring) ↦ ⟦
+            substr ↦ Φ̇.dataized(ξ.substring).as-bytes,
+            φ ↦ ξ.ρ.index-of(ξ.substr).eq(ξ.ρ.length.minus(ξ.substr.size))
+          ⟧,
+          starts-with(substring) ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.index-of(ξ.substring))
+          ⟧,
+          index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            end ↦ Φ̇.dataized(Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(-1, ξ.rec-index-of-substr(0)),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ ξ.ρ.end.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          last-index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(
+              -1,
+              ξ.rec-index-of-substr(
+                Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))
+              )
+            ),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ 0.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(-1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          up-cased ↦ ⟦
+            ascii-z ↦ Φ̇.dataized(ξ.ascii("z")).as-bytes,
+            ascii-a ↦ Φ̇.dataized(ξ.ascii("a")).as-bytes,
+            distance ↦ Φ̇.number(ξ.ascii-a).minus(ξ.ascii("A")),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-258-22
+                )
+              )
+            ),
+            ascii(char) ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(ξ.char.as-bytes).as-i64.as-number
+            ⟧,
+            auto-named-attr-at-258-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.minus(ξ.ρ.distance).as-i64.as-bytes.slice(7, 1), ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          low-cased ↦ ⟦
+            ascii-z ↦ ξ.ρ.up-cased.ascii("Z"),
+            ascii-a ↦ ξ.ρ.up-cased.ascii("A"),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-291-22
+                )
+              )
+            ),
+            auto-named-attr-at-291-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ρ.up-cased.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.plus(ξ.ρ.ρ.up-cased.distance).as-i64.as-bytes.slice(
+                    7, 1
+                  ),
+                  ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          at(i) ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+            index ↦ Φ̇.dataized(
+              0.gt(ξ.idx).if(Φ̇.number(ξ.len).plus(ξ.idx), ξ.idx)
+            ).as-bytes,
+            φ ↦ 0.gt(ξ.index).or(Φ̇.number(ξ.index).gte(ξ.len)).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Given index %d is out of text bounds", Φ̇.tuple(Φ̇.tuple.empty, ξ.index)
+                )
+              ),
+              ξ.ρ.slice(ξ.index, 1)
+            )
+          ⟧,
+          replaced(target, replacement) ↦ ⟦
+            self-as-bytes ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            reinit ↦ Φ̇.string(ξ.self-as-bytes),
+            matched ↦ ξ.target.match(ξ.reinit).next,
+            φ ↦ ξ.matched.exists.not.if(
+              Φ̇.txt.text(ξ.reinit),
+              Φ̇.txt.text(ξ.rec-replaced(ξ.matched, "", ξ.matched.start))
+            ),
+            rec-replaced(block, accum, start) ↦ ⟦
+              φ ↦ ξ.block.exists.if(
+                ξ.ρ.rec-replaced(
+                  ξ.block.next,
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.block.from.minus(ξ.start))
+                  ).concat(ξ.ρ.replacement),
+                  ξ.block.to
+                ),
+                Φ̇.string(
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.ρ.reinit.length.minus(ξ.start))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          as-number ↦ ⟦
+            scanned ↦ Φ̇.txt.sscanf("%f", ξ.ρ.origin),
+            φ ↦ ξ.scanned.length.eq(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't convert text %s to number", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin)
+                )
+              ),
+              ξ.scanned.tail
+            )
+          ⟧,
+          split(delimiter) ↦ ⟦
+            delim ↦ Φ̇.dataized(ξ.delimiter).as-bytes,
+            self-as-bytes ↦ ξ.ρ.origin.as-bytes,
+            len ↦ Φ̇.dataized(ξ.self-as-bytes.size).as-bytes,
+            φ ↦ ξ.len.eq(0).if(Φ̇.tuple.empty, ξ.rec-split(Φ̇.tuple.empty, 0, 0)),
+            rec-split(accum, start, current) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.current).if(
+                ξ.with-substr,
+                ξ.ρ.delim.eq(ξ.ρ.self-as-bytes.slice(ξ.current, 1)).if(
+                  ξ.ρ.rec-split(
+                    ξ.with-substr, ξ.current.plus(1), ξ.current.plus(1)
+                  ),
+                  ξ.ρ.rec-split(ξ.accum, ξ.start, ξ.current.plus(1))
+                )
+              ),
+              with-substr ↦ ξ.accum.with(
+                Φ̇.string(
+                  ξ.ρ.self-as-bytes.slice(ξ.start, ξ.current.minus(ξ.start))
+                )
+              )
+            ⟧
+          ⟧,
+          chained(others) ↦ ⟦
+            φ ↦ 0.eq(ξ.others.length).if(
+              ξ.ρ,
+              ξ.ρ.ρ.text(
+                Φ̇.string(
+                  Φ̇.structs.list(ξ.others).reduced(
+                    ξ.ρ.origin.as-bytes,
+                    ⟦
+                      φ ↦ ξ.accum.concat(ξ.str.as-bytes),
+                      accum ↦ ∅,
+                      str ↦ ∅
+                    ⟧
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.3/org/eolang/while.phi b/data/0.49.3/org/eolang/while.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.3/org/eolang/while.phi
@@ -0,0 +1,22 @@
+{⟦
+  org ↦ ⟦
+    eolang ↦ ⟦
+      while(condition, body) ↦ ⟦
+        φ ↦ ξ.condition(0).as-bool.if(ξ.loop(0), Φ̇.false),
+        loop(index) ↦ ⟦
+          current ↦ ξ.ρ.body(ξ.index),
+          φ ↦ ξ.ρ.condition(ξ.index.plus(1)).as-bool.if(
+            Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.current), ξ.ρ.loop(ξ.index.plus(1))
+              )
+            ),
+            ξ.current
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/dependencies.md b/data/0.49.4/dependencies.md
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/dependencies.md
@@ -0,0 +1,3904 @@
+# Dependencies
+
+## [org/eolang/bytes.phi](./org/eolang/bytes.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      bytes(data) ↦ ⟦
+        φ ↦ ξ.data,
+        as-bytes ↦ ξ,
+        as-bool ↦ ξ.eq(Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)),
+        as-number() ↦ ⟦
+          φ ↦ ξ.ρ.eq(Φ̇.nan.as-bytes).if(
+            Φ̇.nan,
+            ξ.ρ.eq(Φ̇.positive-infinity.as-bytes).if(
+              Φ̇.positive-infinity,
+              ξ.ρ.eq(Φ̇.negative-infinity.as-bytes).if(
+                Φ̇.negative-infinity,
+                ξ.ρ.size.eq(8).if(
+                  Φ̇.number(ξ.ρ),
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Can't convert non 8 length bytes to a number, bytes are %x", Φ̇.tuple.empty
+                    )
+                  )
+                )
+              )
+            )
+          )
+        ⟧,
+        eq(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_eq
+        ⟧,
+        size() ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_size
+        ⟧,
+        slice(start, len) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_slice
+        ⟧,
+        as-i64() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(8).if(
+            Φ̇.i64(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 8 length bytes to i64, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i32() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(4).if(
+            Φ̇.i32(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 4 length bytes to i32, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i16() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(2).if(
+            Φ̇.i16(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 2 length bytes to i16, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        and(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_and
+        ⟧,
+        or(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_or
+        ⟧,
+        xor(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_xor
+        ⟧,
+        not() ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_not
+        ⟧,
+        left(x) ↦ ⟦
+          φ ↦ ξ.ρ.right(ξ.x.neg)
+        ⟧,
+        right(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_right
+        ⟧,
+        concat(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_concat
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/cti.phi](./org/eolang/cti.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      cti(delegate, level, message) ↦ ⟦
+        φ ↦ ξ.delegate
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/dataized.phi](./org/eolang/dataized.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      dataized(target) ↦ ⟦
+        φ ↦ Φ̇.try(
+          ξ.target,
+          ⟦
+            φ ↦ Φ̇.error(ξ.ex),
+            ex ↦ ∅
+          ⟧,
+          Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)
+        )
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/error.phi](./org/eolang/error.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      error(message) ↦ ⟦
+        λ ⤍ Lorg_eolang_error
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/false.phi](./org/eolang/false.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      false() ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+        not ↦ Φ̇.true,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.right
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/dir.phi](./org/eolang/fs/dir.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      fs() ↦ ⟦
+        dir(file) ↦ ⟦
+          φ ↦ ξ.file,
+          is-directory ↦ Φ̇.true,
+          made() ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.mkdir), ξ.ρ))
+            ),
+            mkdir() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_made_mkdir
+            ⟧
+          ⟧,
+          walk(glob) ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_dir_walk
+          ⟧,
+          deleted() ↦ ⟦
+            walked ↦ ξ.ρ.walk("**").at.ρ,
+            len ↦ Φ̇.dataized(ξ.walked.length).as-bytes,
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.rec-delete(ξ.walked, 0)), ξ.ρ
+                )
+              ),
+              ξ.ρ
+            ),
+            rec-delete(tup, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                Φ̇.true,
+                Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.tup.tail.deleted.exists),
+                    ξ.ρ.rec-delete(ξ.tup.head, ξ.index.plus(1))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          tmpfile() ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.fs.file(Φ̇.string(ξ.touch.as-bytes)),
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Directory %s does not exist, can't create temporary file",
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+                )
+              )
+            ),
+            touch() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_tmpfile_touch
+            ⟧
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            φ ↦ Φ̇.error(
+              Φ̇.txt.sprintf(
+                "The file %s is a directory, can't open for I/O operations",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/file.phi](./org/eolang/fs/file.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      fs() ↦ ⟦
+        file(path) ↦ ⟦
+          φ ↦ ξ.path,
+          is-directory() ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_is_directory
+          ⟧,
+          exists() ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_exists
+          ⟧,
+          touched() ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.touch), ξ.ρ))
+            ),
+            touch() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_touched_touch
+            ⟧
+          ⟧,
+          deleted() ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.delete), ξ.ρ)), ξ.ρ
+            ),
+            delete() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_deleted_delete
+            ⟧
+          ⟧,
+          size() ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_size
+          ⟧,
+          moved(target) ↦ ⟦
+            φ ↦ Φ̇.fs.file(Φ̇.string(ξ.move.as-bytes)),
+            move() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_moved_move
+            ⟧
+          ⟧,
+          as-path() ↦ ⟦
+            φ ↦ Φ̇.fs.path(ξ.ρ.path).determined
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            access ↦ Φ̇.dataized(ξ.mode).as-bytes,
+            read ↦ ξ.access.eq("r"),
+            write ↦ ξ.access.eq("w"),
+            append ↦ ξ.access.eq("a"),
+            read-write ↦ ξ.access.eq("r+"),
+            write-read ↦ ξ.access.eq("w+"),
+            read-append ↦ ξ.access.eq("a+"),
+            can-read ↦ ξ.read.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).as-bool,
+            can-write ↦ ξ.write.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).or(
+              ξ.append
+            ).as-bool,
+            must-exists ↦ ξ.read.or(ξ.read-write).as-bool,
+            truncate ↦ ξ.write.or(ξ.write-read).as-bool,
+            φ ↦ ξ.can-read.not.and(ξ.can-write.not).if(
+              Φ̇.error(
+                "Wrong access mod. Only next modes are available: 'r', 'w', 'a', 'r+', 'w+', 'a+'"
+              ),
+              ξ.ρ.exists.not.if(
+                ξ.must-exists.if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "File must exist for given access mod: '%s'",
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.access)
+                    )
+                  ),
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.touched.touch), ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  )
+                ),
+                ξ.truncate.if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.deleted.delete), ξ.ρ.touched.touch
+                        ),
+                        ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  ),
+                  Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.process-file), ξ.ρ))
+                )
+              )
+            ),
+            process-file() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_open_process_file
+            ⟧,
+            file-stream() ↦ ⟦
+              read(size) ↦ ⟦
+                φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+                input-block(buffer) ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ ξ.buffer,
+                  read(size) ↦ ⟦
+                    read-bytes ↦ Φ̇.dataized(ξ.ρ.ρ.read-bytes(ξ.size)).as-bytes,
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-read.not.if(
+                      ξ.auto-named-attr-at-216-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-216-18() ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't read from file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                read-bytes(size) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_read_read_bytes
+                ⟧
+              ⟧,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.output-block.write(ξ.buffer).self,
+                output-block() ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ Φ̇.true,
+                  write(buffer) ↦ ⟦
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-write.not.if(
+                      ξ.auto-named-attr-at-258-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.written-bytes(ξ.buffer)), ξ.ρ.ρ.output-block
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-258-18() ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't write to file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                written-bytes(buffer) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_write_written_bytes
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/path.phi](./org/eolang/fs/path.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      fs() ↦ ⟦
+        path(uri) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win32(Φ̇.string(ξ.uri.as-bytes)), ξ.posix(Φ̇.string(ξ.uri.as-bytes))
+          ).determined,
+          joined(paths) ↦ ⟦
+            joined-path ↦ Φ̇.string(
+              Φ̇.txt.text(ξ.ρ.separator).joined(ξ.paths).as-bytes
+            ),
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.ρ.win32(ξ.joined-path), ξ.ρ.posix(ξ.joined-path)
+            ).normalized
+          ⟧,
+          separator() ↦ ⟦
+            φ ↦ Φ̇.sys.os.is-windows.if(ξ.ρ.win32.separator, ξ.ρ.posix.separator)
+          ⟧,
+          posix(uri) ↦ ⟦
+            determined ↦ ξ,
+            separator ↦ "/",
+            as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+            as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+            φ ↦ ξ.uri,
+            is-absolute() ↦ ⟦
+              φ ↦ ξ.ρ.uri.length.gt(0).and(
+                ξ.ρ.uri.as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+              )
+            ⟧,
+            normalized() ↦ ⟦
+              uri-as-bytes ↦ ξ.ρ.uri.as-bytes,
+              is-absolute ↦ ξ.ρ.is-absolute.as-bool,
+              has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                  ξ.ρ.separator
+                )
+              ),
+              path ↦ Φ̇.txt.text(ξ.ρ.separator).joined(
+                Φ̇.structs.list(Φ̇.txt.text(ξ.ρ.uri).split(ξ.ρ.separator)).reduced(
+                  Φ̇.tuple.empty, ξ.auto-named-attr-at-102-25
+                )
+              ),
+              normalized ↦ ξ.ρ.uri.length.eq(0).if(
+                ".",
+                ξ.is-absolute.if(ξ.ρ.separator.concat(ξ.path), ξ.path).concat(
+                  ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                )
+              ).as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                ξ.normalized.eq("//").if("/", Φ̇.string(ξ.normalized))
+              ).determined,
+              auto-named-attr-at-102-25(accum, segment) ↦ ⟦
+                φ ↦ ξ.segment.eq("..").if(
+                  ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                    ξ.accum.head, ξ.ρ.is-absolute.not.if(ξ.accum.with(ξ.segment), ξ.accum)
+                  ),
+                  ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                    ξ.accum, ξ.accum.with(ξ.segment)
+                  )
+                )
+              ⟧
+            ⟧,
+            resolved(other) ↦ ⟦
+              other-as-bytes ↦ ξ.other.as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                Φ̇.string(
+                  ξ.other-as-bytes.slice(0, 1).eq(ξ.ρ.separator).if(
+                    ξ.other-as-bytes, ξ.ρ.uri.concat(ξ.ρ.separator).concat(ξ.other-as-bytes)
+                  )
+                )
+              ).normalized
+            ⟧,
+            basename() ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              slice-start-idx ↦ Φ̇.dataized(
+                ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+              ).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                  ξ.pth,
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            extname() ↦ ⟦
+              base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+              slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+              φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                "",
+                Φ̇.string(
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            dirname() ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                  ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                )
+              )
+            ⟧
+          ⟧,
+          win32(uri) ↦ ⟦
+            separator ↦ "\\",
+            φ ↦ ξ.validated(
+              Φ̇.string(ξ.validated.separated-correctly(ξ.uri).as-bytes)
+            ).determined,
+            validated(uri) ↦ ⟦
+              determined ↦ ξ,
+              separator ↦ ξ.ρ.separator,
+              as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+              as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+              φ ↦ ξ.uri,
+              is-drive-relative(uri) ↦ ⟦
+                φ ↦ Φ̇.txt.regex("/^[a-zA-Z]:/").matches(ξ.uri).as-bool
+              ⟧,
+              is-root-relative(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+                )
+              ⟧,
+              separated-correctly(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                pth ↦ Φ̇.txt.text(Φ̇.string(ξ.uri-as-bytes)),
+                replaced ↦ Φ̇.dataized(
+                  ξ.pth.replaced(Φ̇.txt.regex("/\\//"), ξ.ρ.separator)
+                ).as-bytes,
+                φ ↦ ξ.pth.index-of(ξ.ρ.ρ.ρ.ρ.path.posix.separator).eq(-1).if(
+                  Φ̇.string(ξ.uri-as-bytes), Φ̇.string(ξ.replaced)
+                )
+              ⟧,
+              is-absolute() ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.eq(0).if(
+                  Φ̇.false,
+                  ξ.ρ.is-root-relative(ξ.uri-as-bytes).or(
+                    ξ.uri-as-bytes.size.gt(1).and(
+                      ξ.ρ.is-drive-relative(ξ.uri-as-bytes)
+                    )
+                  )
+                )
+              ⟧,
+              normalized() ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.uri-as-bytes).as-bool,
+                is-root-relative ↦ ξ.ρ.is-root-relative(ξ.uri-as-bytes).as-bool,
+                driveless ↦ Φ̇.dataized(
+                  ξ.is-drive-relative.if(
+                    ξ.uri-as-bytes.slice(2, ξ.uri-as-bytes.size.plus(-2)), ξ.uri-as-bytes
+                  )
+                ).as-bytes,
+                has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                    ξ.ρ.separator
+                  )
+                ),
+                path ↦ Φ̇.dataized(
+                  Φ̇.txt.text(ξ.ρ.separator).joined(
+                    Φ̇.structs.list(
+                      Φ̇.txt.text(ξ.driveless).split(ξ.ρ.separator)
+                    ).reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-357-27)
+                  )
+                ).as-bytes,
+                normalized ↦ ξ.driveless.size.eq(0).if(
+                  ".",
+                  ξ.is-drive-relative.if(
+                    ξ.driveless.slice(0, 1).eq(ξ.ρ.separator).if(
+                      ξ.ρ.uri.slice(0, 3), ξ.ρ.uri.slice(0, 2)
+                    ),
+                    ξ.is-root-relative.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  ).concat(ξ.path).concat(
+                    ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  )
+                ).as-bytes,
+                φ ↦ ξ.ρ.ρ.validated(
+                  ξ.normalized.eq("\\\\").if(
+                    ξ.ρ.separator, Φ̇.string(ξ.normalized)
+                  )
+                ).determined,
+                auto-named-attr-at-357-27(accum, segment) ↦ ⟦
+                  φ ↦ ξ.segment.eq("..").if(
+                    ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                      ξ.accum.head,
+                      ξ.ρ.is-root-relative.not.and(ξ.ρ.is-drive-relative.not).if(
+                        ξ.accum.with(ξ.segment), ξ.accum
+                      )
+                    ),
+                    ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                      ξ.accum, ξ.accum.with(ξ.segment)
+                    )
+                  )
+                ⟧
+              ⟧,
+              resolved(other) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                valid-other ↦ Φ̇.dataized(ξ.ρ.separated-correctly(ξ.other)).as-bytes,
+                other-is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.valid-other).as-bool,
+                other-is-root-relative ↦ ξ.ρ.is-root-relative(ξ.valid-other).as-bool,
+                φ ↦ ξ.ρ.ρ.validated(
+                  Φ̇.string(
+                    ξ.other-is-drive-relative.if(
+                      ξ.valid-other,
+                      ξ.other-is-root-relative.if(
+                        ξ.ρ.is-drive-relative(ξ.uri-as-bytes).if(
+                          ξ.uri-as-bytes.slice(0, 2).concat(ξ.valid-other), ξ.valid-other
+                        ),
+                        ξ.uri-as-bytes.concat(ξ.ρ.separator).concat(
+                          ξ.valid-other
+                        )
+                      )
+                    )
+                  )
+                ).normalized
+              ⟧,
+              basename() ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                slice-start-idx ↦ Φ̇.dataized(
+                  ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+                ).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                    ξ.pth,
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              extname() ↦ ⟦
+                base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+                slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+                φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                  "",
+                  Φ̇.string(
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              dirname() ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                    ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                  )
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/fs/tmpdir.phi](./org/eolang/fs/tmpdir.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      fs() ↦ ⟦
+        tmpdir() ↦ ⟦
+          φ ↦ Φ̇.fs.dir(Φ̇.fs.file(Φ̇.string(ξ.os-tmp-dir))),
+          os-tmp-dir ↦ Φ̇.dataized(ξ.os-tmp-dir-1).as-bytes,
+          os-tmp-dir-1() ↦ ⟦
+            tmpdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TMPDIR")).as-bytes,
+            tmp ↦ Φ̇.dataized(Φ̇.sys.getenv("TMP")).as-bytes,
+            temp ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMP")).as-bytes,
+            tempdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMPDIR")).as-bytes,
+            userprofile ↦ Φ̇.dataized(Φ̇.sys.getenv("USERPROFILE")).as-bytes,
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.tmp.eq("").if(
+                ξ.temp.eq("").if(
+                  ξ.userprofile.eq("").if("C:\\Windows", ξ.userprofile), ξ.temp
+                ),
+                ξ.tmp
+              ),
+              ξ.tmpdir.eq("").if(
+                ξ.tmp.eq("").if(
+                  ξ.temp.eq("").if(
+                    ξ.tempdir.eq("").if("/tmp", ξ.tempdir), ξ.temp
+                  ),
+                  ξ.tmp
+                ),
+                ξ.tmpdir
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/go.phi](./org/eolang/go.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      go() ↦ ⟦
+        id ↦ Φ̇.dataized(
+          Φ̇.malloc.of(
+            8,
+            ⟦
+              φ ↦ ξ.m.put(ξ.m.id),
+              m ↦ ∅
+            ⟧
+          )
+        ).as-bytes,
+        to(body) ↦ ⟦
+          φ ↦ Φ̇.try(ξ.body(ξ.token), ξ.auto-named-attr-at-63-9, Φ̇.true),
+          token() ↦ ⟦
+            backward ↦ Φ̇.error(ξ.jump(ξ.ρ.ρ.to(ξ.ρ.body))),
+            jump(value) ↦ ⟦
+              id ↦ ξ.ρ.ρ.ρ.id
+            ⟧,
+            forward(res) ↦ ⟦
+              φ ↦ Φ̇.error(ξ.ρ.jump(ξ.res))
+            ⟧
+          ⟧,
+          auto-named-attr-at-63-9(e) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.id.eq(ξ.e.id).if(ξ.e.value, Φ̇.error(ξ.e))
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i16.phi](./org/eolang/i16.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i16(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i16 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32.as-i16),
+        as-i64 ↦ ξ.as-i32.as-i64,
+        as-number ↦ ξ.as-i64.as-number,
+        as-i32() ↦ ⟦
+          λ ⤍ Lorg_eolang_i16_as_i32
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lt(ξ.x.as-i16.as-i32)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lte(ξ.x.as-i16.as-i32)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gt(ξ.x.as-i16.as-i32)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gte(ξ.x.as-i16.as-i32)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.times(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.plus(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i16.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i16 ↦ ξ.x.as-i16,
+          bts ↦ ξ.ρ.as-i32.div(ξ.x-as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧),
+          φ ↦ ξ.x-as-i16.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i16 zero",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i32.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))).if(
+              ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i32.phi](./org/eolang/i32.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i32(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i32 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32),
+        as-number ↦ ξ.as-i64.as-number,
+        as-i64() ↦ ⟦
+          λ ⤍ Lorg_eolang_i32_as_i64
+        ⟧,
+        as-i16() ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 2).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(
+            Φ̇.i16(ξ.ρ.as-bytes.slice(2, 2)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i32 number %d to i16 because it's out of i16 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            )
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lt(ξ.x.as-i32.as-i64)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lte(ξ.x.as-i32.as-i64)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gt(ξ.x.as-i32.as-i64)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gte(ξ.x.as-i32.as-i64)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.times(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.plus(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i32.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i32 ↦ ξ.x.as-i32,
+          bts ↦ ξ.ρ.as-i64.div(ξ.x-as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧),
+          φ ↦ ξ.x-as-i32.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i32 zero", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))).if(
+              ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i64.phi](./org/eolang/i64.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i64(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i64 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64),
+        as-i16 ↦ ξ.as-i32.as-i16,
+        as-i32() ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 4).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(
+            Φ̇.i32(ξ.ρ.as-bytes.slice(4, 4)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i64 number %d to i32 because it's out of i32 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-number)
+              )
+            )
+          )
+        ⟧,
+        as-number() ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_as_number
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.as-i64.gt(ξ.ρ.minus(ξ.ρ.ρ.i64(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(ξ.ρ.ρ.i64(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_div
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/bytes-as-input.phi](./org/eolang/io/bytes-as-input.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        bytes-as-input(bts) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.bts, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+            input-block(data, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                to-read ↦ Φ̇.dataized(ξ.size).as-bytes,
+                available ↦ Φ̇.dataized(ξ.ρ.data.size).as-bytes,
+                next ↦ Φ̇.dataized(
+                  Φ̇.number(ξ.available).gt(ξ.to-read).if(ξ.to-read, ξ.available)
+                ).as-bytes,
+                φ ↦ ξ.available.eq(0).if(
+                  ξ.ρ.ρ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.bytes(⟦ Δ ⤍ -- ⟧)),
+                  ξ.ρ.ρ.input-block(
+                    ξ.ρ.data.slice(
+                      ξ.next, Φ̇.number(ξ.available).minus(Φ̇.number(ξ.next))
+                    ).as-bytes,
+                    ξ.ρ.data.slice(0, ξ.next).as-bytes
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/console.phi](./org/eolang/io/console.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        console() ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(ξ.windows-console, ξ.posix-console).platform,
+          posix-console() ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.posix(
+                      "read",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.stdin-fileno), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block() ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.posix(
+                          "write",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.posix.stdout-fileno
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          windows-console() ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.win32(
+                      "ReadFile",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.std-input-handle), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block() ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.win32(
+                          "WriteFile",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.win32.std-output-handle
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/dead-input.phi](./org/eolang/io/dead-input.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        dead-input() ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block,
+            input-block() ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ -- ⟧),
+              read(size) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.input-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/dead-output.phi](./org/eolang/io/dead-output.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        dead-output() ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block,
+            output-block() ↦ ⟦
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.output-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/input-length.phi](./org/eolang/io/input-length.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        input-length(input) ↦ ⟦
+          chunk ↦ 4096,
+          φ ↦ ξ.rec-read(ξ.input, 0),
+          rec-read(input, length) ↦ ⟦
+            read-bytes ↦ ξ.input.read(ξ.ρ.chunk).read.ρ,
+            φ ↦ ξ.read-bytes.size.eq(0).if(
+              ξ.length, ξ.ρ.rec-read(ξ.read-bytes, ξ.length.plus(ξ.read-bytes.size))
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/malloc-as-output.phi](./org/eolang/io/malloc-as-output.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        malloc-as-output(allocated) ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block(0).write(ξ.buffer).self,
+            output-block(offset) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty, ξ.ρ.ρ.ρ.allocated.write(ξ.ρ.offset, ξ.buffer)
+                    ),
+                    ξ.ρ.ρ.output-block(ξ.ρ.offset.plus(ξ.buffer.size))
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/stdin.phi](./org/eolang/io/stdin.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        stdin() ↦ ⟦
+          φ ↦ ξ.all-lines,
+          all-lines() ↦ ⟦
+            φ ↦ ξ.rec-read(ξ.ρ.next-line, Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.true),
+            separator ↦ Φ̇.dataized(Φ̇.sys.line-separator).as-bytes,
+            rec-read(line, buffer, first) ↦ ⟦
+              φ ↦ ξ.line.length.eq(0).if(
+                Φ̇.string(ξ.buffer),
+                ξ.ρ.rec-read(
+                  ξ.ρ.ρ.next-line,
+                  ξ.first.if(
+                    ξ.buffer.concat(ξ.line), ξ.buffer.concat(ξ.ρ.separator).concat(ξ.line)
+                  ),
+                  Φ̇.false
+                )
+              )
+            ⟧
+          ⟧,
+          next-line() ↦ ⟦
+            first ↦ Φ̇.io.console.read(1).self,
+            φ ↦ ξ.first.as-bytes.size.eq(0).if(
+              "", ξ.rec-read(ξ.first, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+            ),
+            rec-read(input, buffer) ↦ ⟦
+              char ↦ ξ.input.as-bytes,
+              next ↦ ξ.input.read(1).self,
+              φ ↦ ξ.char.eq(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).or(
+                ξ.char.eq("\r").and(ξ.next.as-bytes.eq("\n")).or(ξ.char.eq("\n"))
+              ).if(
+                Φ̇.string(ξ.buffer), ξ.ρ.rec-read(ξ.next, ξ.buffer.concat(ξ.char))
+              )
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/stdout.phi](./org/eolang/io/stdout.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        stdout(text) ↦ ⟦
+          φ ↦ Φ̇.seq(
+            Φ̇.tuple(
+              Φ̇.tuple(Φ̇.tuple.empty, Φ̇.io.console.write(ξ.text)), Φ̇.true
+            )
+          )
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/tee-input.phi](./org/eolang/io/tee-input.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        tee-input(input, output) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.input, ξ.ρ.output, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(
+              ξ.size
+            ).self,
+            input-block(input, output, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                read-bytes ↦ ξ.ρ.input.read(ξ.size).read.ρ,
+                written-bytes ↦ ξ.ρ.output.write(ξ.read-bytes).write.ρ,
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.written-bytes),
+                    ξ.ρ.ρ.input-block(
+                      ξ.read-bytes, ξ.written-bytes, ξ.read-bytes.as-bytes
+                    )
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/malloc.phi](./org/eolang/malloc.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      malloc() ↦ ⟦
+        empty(scope) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.malloc.of(0, ξ.scope)
+        ⟧,
+        for(object, scope) ↦ ⟦
+          bts ↦ Φ̇.dataized(ξ.object).as-bytes,
+          φ ↦ ξ.ρ.ρ.malloc.of(ξ.bts.size, ξ.auto-named-attr-at-96-9),
+          auto-named-attr-at-96-9(m) ↦ ⟦
+            φ ↦ Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.m.write(0, ξ.ρ.bts)), ξ.ρ.scope(ξ.m)
+              )
+            )
+          ⟧
+        ⟧,
+        of(size, scope) ↦ ⟦
+          φ() ↦ ⟦
+            λ ⤍ Lorg_eolang_malloc_of_φ
+          ⟧,
+          allocated(id) ↦ ⟦
+            φ ↦ ξ.get,
+            get ↦ ξ.read(0, ξ.size),
+            size() ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_size
+            ⟧,
+            resized(new-size) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_resized
+            ⟧,
+            copy(source, target, length) ↦ ⟦
+              φ ↦ ξ.ρ.write(ξ.target, ξ.ρ.read(ξ.source, ξ.length))
+            ⟧,
+            read(offset, length) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_read
+            ⟧,
+            write(offset, data) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_write
+            ⟧,
+            put(object) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.write(0, ξ.object)), ξ.ρ.get
+                )
+              )
+            ⟧
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/angle.phi](./org/eolang/math/angle.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        angle(value) ↦ ⟦
+          φ ↦ ξ.value,
+          in-degrees ↦ ξ.ρ.angle(ξ.ρ.times(180).div(Φ̇.math.pi)),
+          in-radians ↦ ξ.ρ.angle(ξ.times(Φ̇.math.pi).div(180)),
+          sin() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_sin
+          ⟧,
+          cos() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_cos
+          ⟧,
+          tan() ↦ ⟦
+            cosine ↦ Φ̇.dataized(ξ.ρ.cos).as-bytes,
+            φ ↦ ξ.cosine.eq(0).if(Φ̇.nan, ξ.ρ.sin.div(ξ.cosine))
+          ⟧,
+          ctan() ↦ ⟦
+            sine ↦ Φ̇.dataized(ξ.ρ.sin).as-bytes,
+            φ ↦ ξ.sine.eq(0).if(Φ̇.nan, ξ.ρ.cos.div(ξ.sine))
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/e.phi](./org/eolang/math/e.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        e ↦ 2.718281828459045,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/integral.phi](./org/eolang/math/integral.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        integral(fun, a, b, n) ↦ ⟦
+          subsection(a, b) ↦ ⟦
+            φ ↦ ξ.b.minus(ξ.a).div(6).times(
+              ξ.ρ.fun(ξ.a).plus(
+                4.times(ξ.ρ.fun(0.5.times(ξ.a.plus(ξ.b)))).plus(ξ.ρ.fun(ξ.b))
+              )
+            )
+          ⟧,
+          φ ↦ Φ̇.malloc.of(8, ξ.auto-named-attr-at-50-11).as-number,
+          auto-named-attr-at-50-11(sum) ↦ ⟦
+            φ ↦ Φ̇.malloc.for(ξ.ρ.a, ξ.auto-named-attr-at-53-16),
+            auto-named-attr-at-53-16(left) ↦ ⟦
+              right ↦ ξ.ρ.ρ.b,
+              step ↦ ξ.right.minus(ξ.left).div(ξ.ρ.ρ.n).as-number,
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple.empty,
+                    Φ̇.while(
+                      ξ.auto-named-attr-at-59-21,
+                      ⟦
+                        φ ↦ Φ̇.true,
+                        i ↦ ∅
+                      ⟧
+                    )
+                  ),
+                  ξ.ρ.sum
+                )
+              ),
+              auto-named-attr-at-59-21(i) ↦ ⟦
+                φ ↦ ξ.ρ.left.as-number.plus(ξ.ρ.step).lt(ξ.ρ.right).if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple.empty,
+                          ξ.ρ.ρ.sum.put(
+                            ξ.ρ.ρ.sum.as-number.plus(
+                              ξ.ρ.ρ.ρ.subsection(
+                                ξ.ρ.left.as-number, ξ.ρ.left.as-number.plus(ξ.ρ.step)
+                              )
+                            )
+                          )
+                        ),
+                        ξ.ρ.left.put(ξ.ρ.left.as-number.plus(ξ.ρ.step))
+                      ),
+                      Φ̇.true
+                    )
+                  ),
+                  Φ̇.false
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/numbers.phi](./org/eolang/math/numbers.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        numbers(sequence) ↦ ⟦
+          φ ↦ ξ.sequence,
+          max() ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get max number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.negative-infinity,
+                ⟦
+                  max ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.item.as-number.gt(ξ.max).if(ξ.item, ξ.max)
+                ⟧
+              )
+            )
+          ⟧,
+          min() ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get min number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.positive-infinity,
+                ⟦
+                  min ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.min.gt(ξ.item.as-number).if(ξ.item, ξ.min)
+                ⟧
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/pi.phi](./org/eolang/math/pi.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        pi ↦ 3.141592653589793,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/random.phi](./org/eolang/math/random.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        random(seed) ↦ ⟦
+          fixed ↦ ξ,
+          φ ↦ ξ.seed.as-number.div(
+            Φ̇.bytes(⟦ Δ ⤍ 00-20-00-00-00-00-00-00 ⟧).as-i64.as-number
+          ),
+          next ↦ ξ.ρ.random(
+            ξ.seed.times(25214903917).plus(11).as-i64.and(
+              Φ̇.bytes(⟦ Δ ⤍ 00-0F-FF-FF-FF-FF-FF-FF ⟧)
+            ).as-i64.as-number
+          ).fixed,
+          pseudo() ↦ ⟦
+            const-1 ↦ 35,
+            const-2 ↦ 53,
+            const-3 ↦ 17,
+            one ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-01 ⟧),
+            φ ↦ ξ.ρ.ρ.random(ξ.time-seed),
+            time-seed ↦ ξ.time-bytes.left(ξ.const-1).and(
+              ξ.one.left(ξ.const-2).as-i64.minus(ξ.one).as-bytes
+            ).as-i64.plus(
+              ξ.time-bytes.left(ξ.const-3).and(
+                ξ.one.left(ξ.const-1).as-i64.minus(ξ.one).as-bytes
+              ).as-i64.plus(
+                ξ.time-bytes.and(
+                  ξ.one.left(ξ.const-3).as-i64.minus(ξ.one).as-bytes
+                ).as-i64
+              )
+            ).as-number,
+            time-bytes ↦ Φ̇.sys.os.is-windows.if(
+              Φ̇.sys.win32(
+                "GetSystemTime", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.system-time)
+              ).milliseconds,
+              ⟦
+                timeval ↦ Φ̇.sys.posix(
+                  "gettimeofday", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.timeval)
+                ).output,
+                φ ↦ ξ.timeval.tv-sec.times(1000).plus(
+                  ξ.timeval.tv-usec.as-i64.div(1000.as-i64).as-number
+                )
+              ⟧
+            ).as-i64.as-bytes
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/math/real.phi](./org/eolang/math/real.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        real(num) ↦ ⟦
+          φ ↦ ξ.num,
+          exp ↦ Φ̇.math.real(Φ̇.math.e).pow(ξ.num),
+          mod(x) ↦ ⟦
+            dividend ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            divisor ↦ Φ̇.number(ξ.x.as-bytes),
+            φ ↦ ξ.divisor.eq(0).if(
+              Φ̇.error("Can't calculate mod by zero"),
+              ξ.dividend.gt(0).if(ξ.abs-mod, ξ.abs-mod.neg)
+            ),
+            abs-mod() ↦ ⟦
+              dividend-abs ↦ Φ̇.math.real(ξ.ρ.dividend).abs,
+              divisor-abs ↦ Φ̇.math.real(ξ.ρ.divisor).abs,
+              φ ↦ ξ.dividend-abs.minus(
+                ξ.divisor-abs.times(ξ.dividend-abs.div(ξ.divisor-abs).floor)
+              )
+            ⟧
+          ⟧,
+          abs() ↦ ⟦
+            value ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            φ ↦ ξ.value.gte(0).if(ξ.value, ξ.value.neg)
+          ⟧,
+          pow(x) ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_pow
+          ⟧,
+          sqrt() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_sqrt
+          ⟧,
+          ln() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_ln
+          ⟧,
+          acos() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_acos
+          ⟧,
+          asin() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_asin
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/nan.phi](./org/eolang/nan.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      nan() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F8-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ ξ,
+        is-nan ↦ Φ̇.true,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert NaN to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        times(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        plus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        div(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/negative-infinity.phi](./org/eolang/negative-infinity.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      negative-infinity() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ FF-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.positive-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert negative infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.positive-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.positive-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.positive-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/net/socket.phi](./org/eolang/net/socket.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      net() ↦ ⟦
+        socket(address, port) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win-socket(ξ.address, ξ.port), ξ.posix-socket(ξ.address, ξ.port)
+          ),
+          htons(port) ↦ ⟦
+            bts ↦ ξ.port.as-i16.as-bytes,
+            φ ↦ ξ.bts.and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧)).left(8).or(
+              ξ.bts.right(8).and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧))
+            ).as-i16
+          ⟧,
+          as-input(recv) ↦ ⟦
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ ξ.ρ.ρ.ρ.recv(ξ.size).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          as-output(send) ↦ ⟦
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block() ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.send(ξ.buffer)), ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          posix-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.posix(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.af-inet), Φ̇.sys.posix.sock-stream
+                ),
+                Φ̇.sys.posix.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.posix(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.posix.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' posix syscall, reason: '%s'",
+                  Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.strerror.code)
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.posix.sockaddr-in(
+              Φ̇.sys.posix.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.posix(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.posix(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            strerror() ↦ ⟦
+              φ ↦ Φ̇.sys.posix(
+                "strerror",
+                Φ̇.tuple(
+                  Φ̇.tuple.empty, Φ̇.sys.posix("errno", Φ̇.tuple.empty).code
+                )
+              )
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.posix("close", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)).code,
+              φ ↦ ξ.closed.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a posix socket '%d', reason: '%s'",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.strerror.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              φ ↦ ξ.ρ.sd.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't create a posix socket, reason: '%s'",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.strerror.code)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.scope,
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.ρ.closed-socket(ξ.ρ.sd)
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-276-10),
+              auto-named-attr-at-276-10() ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.posix(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on posix socket '%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-300-10),
+              auto-named-attr-at-300-10() ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.posix(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.posix(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind posix socket '%d' to '%s:%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', reason: '%s'",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.strerror.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-325-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-325-22() ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.posix(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on posix socket '%d', reason: %s",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.strerror.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          win-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.win32(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.af-inet), Φ̇.sys.win32.sock-stream
+                ),
+                Φ̇.sys.win32.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.win32(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.win32.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' win32 function call, WSA error code: %d",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.last-error.code
+                  )
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.win32.sockaddr-in(
+              Φ̇.sys.win32.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.win32(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.win32(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            last-error() ↦ ⟦
+              φ ↦ Φ̇.sys.win32("WSAGetLastError", Φ̇.tuple.empty)
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.win32(
+                "closesocket", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)
+              ).code,
+              φ ↦ ξ.closed.eq(Φ̇.sys.win32.socket-error).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a win32 socket '%d', WSA error code: %d",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.last-error.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              started-up ↦ Φ̇.sys.win32(
+                "WSAStartup", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.winsock-version-2-2)
+              ).code,
+              cleaned-up ↦ Φ̇.sys.win32("WSACleanup", Φ̇.tuple.empty).code,
+              φ ↦ ξ.started-up.eq(0).not.if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't initialize Winsock via 'WSAStartup' call, WSA error code: %d",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.started-up)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.ρ.sd.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Couldn't create a win32 socket, WSA error code: %d",
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.last-error.code)
+                      )
+                    ),
+                    Φ̇.try(
+                      ξ.scope,
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.ρ.closed-socket(ξ.ρ.sd)
+                    )
+                  ),
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.cleaned-up.eq(Φ̇.sys.win32.socket-error).if(
+                    Φ̇.error("Couldn't cleanup Winsock resources"), Φ̇.true
+                  )
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-485-10),
+              auto-named-attr-at-485-10() ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.win32(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on win32 socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-509-10),
+              auto-named-attr-at-509-10() ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.win32(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.win32(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind win32 socket '%d' to '%s:%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', WSA error code: %d",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.last-error.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-534-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-534-22() ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.win32(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on win32 socket '%d', WSA error code: %d",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.last-error.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/number.phi](./org/eolang/number.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      number(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-number ↦ ξ,
+        neg ↦ ξ.times(-1),
+        as-i32 ↦ ξ.as-i64.as-i32,
+        as-i16 ↦ ξ.as-i32.as-i16,
+        is-nan ↦ ξ.as-bytes.eq(Φ̇.nan.as-bytes),
+        as-i64() ↦ ⟦
+          λ ⤍ Lorg_eolang_number_as_i64
+        ⟧,
+        eq(x) ↦ ⟦
+          x-as-bytes ↦ Φ̇.dataized(ξ.x).as-bytes,
+          self-as-bytes ↦ ξ.ρ.as-bytes,
+          pos-zero-as-bytes ↦ 0.as-bytes,
+          neg-zero-as-bytes ↦ -0.as-bytes,
+          φ ↦ ξ.ρ.is-nan.or(Φ̇.number(ξ.x-as-bytes).is-nan).if(
+            Φ̇.false,
+            ξ.x-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+              ξ.x-as-bytes.eq(ξ.neg-zero-as-bytes)
+            ).and(
+              ξ.self-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+                ξ.self-as-bytes.eq(ξ.neg-zero-as-bytes)
+              )
+            ).or(ξ.self-as-bytes.eq(ξ.x-as-bytes))
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.gt(ξ.ρ.minus(Φ̇.number(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(Φ̇.number(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_div
+        ⟧,
+        floor() ↦ ⟦
+          λ ⤍ Lorg_eolang_number_floor
+        ⟧,
+        is-integer() ↦ ⟦
+          φ ↦ ξ.ρ.is-finite.and(ξ.ρ.eq(ξ.ρ.floor))
+        ⟧,
+        is-finite() ↦ ⟦
+          φ ↦ ξ.ρ.is-nan.not.and(
+            ξ.ρ.eq(Φ̇.positive-infinity).or(ξ.ρ.eq(Φ̇.negative-infinity)).not
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/positive-infinity.phi](./org/eolang/positive-infinity.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      positive-infinity() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.negative-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert positive infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        gt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.negative-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.negative-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.negative-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/seq.phi](./org/eolang/seq.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      seq(steps) ↦ ⟦
+        φ ↦ ξ.steps.length.eq(0).if(Φ̇.true, ξ.loop(0)),
+        max-len ↦ Φ̇.dataized(ξ.steps.length.minus(1)).as-bytes,
+        loop(index) ↦ ⟦
+          φ ↦ ξ.index.lt(ξ.ρ.max-len).and(
+            Φ̇.dataized(ξ.ρ.steps.at(ξ.index)).as-bool.or(Φ̇.true)
+          ).if(ξ.ρ.loop(ξ.index.plus(1)), ξ.ρ.steps.at(ξ.index))
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/string.phi](./org/eolang/string.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      string(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        length() ↦ ⟦
+          size ↦ ξ.ρ.as-bytes.size,
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          φ ↦ ξ.size.eq(0).if(0, ξ.rec-length(0, 0)),
+          increase-length(index, char-size, len) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-length(ξ.index.plus(ξ.char-size), ξ.len.plus(1))
+            )
+          ⟧,
+          rec-length(index, accum) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.accum,
+              ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                ξ.ρ.increase-length(ξ.index, 1, ξ.accum),
+                ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                  ξ.ρ.increase-length(ξ.index, 2, ξ.accum),
+                  ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                    ξ.ρ.increase-length(ξ.index, 3, ξ.accum),
+                    ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                      ξ.ρ.increase-length(ξ.index, 4, ξ.accum),
+                      Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Unknown byte format (%x), can't recognize character",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        slice(start, len) ↦ ⟦
+          start-bytes ↦ Φ̇.dataized(ξ.start).as-bytes,
+          len-bytes ↦ Φ̇.dataized(ξ.len).as-bytes,
+          num-start ↦ Φ̇.number(ξ.start-bytes),
+          num-len ↦ Φ̇.number(ξ.len-bytes),
+          size ↦ ξ.ρ.as-bytes.size,
+          end ↦ ξ.num-start.plus(ξ.num-len),
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          bts-start ↦ Φ̇.dataized(
+            ξ.rec-index(
+              0,
+              0,
+              ξ.num-start,
+              Φ̇.txt.sprintf(
+                "Start index (%d) is out of string bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            )
+          ).as-bytes,
+          bts-length ↦ ξ.rec-index(
+            Φ̇.number(ξ.bts-start),
+            0,
+            ξ.num-len,
+            Φ̇.txt.sprintf(
+              "Start index + length to slice (%d) is out of string bounds",
+              Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start.plus(ξ.num-len))
+            )
+          ).minus(ξ.bts-start),
+          φ ↦ ξ.num-start.lt(0).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Start index must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            ),
+            ξ.num-len.lt(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Length to slice must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-len)
+                )
+              ),
+              ξ.num-len.eq(0).if(
+                "", Φ̇.string(ξ.ρ.as-bytes.slice(ξ.bts-start, ξ.bts-length))
+              )
+            )
+          ),
+          increase(index, char-size, accum, result, cause) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-index(
+                ξ.index.plus(ξ.char-size), ξ.accum.plus(1), ξ.result, ξ.cause
+              )
+            )
+          ⟧,
+          rec-index(index, accum, result, cause) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.accum.eq(ξ.result).if(
+              ξ.index,
+              ξ.index.eq(ξ.ρ.size).if(
+                Φ̇.error(ξ.cause),
+                ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                  ξ.ρ.increase(ξ.index, 1, ξ.accum, ξ.result, ξ.cause),
+                  ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                    ξ.ρ.increase(ξ.index, 2, ξ.accum, ξ.result, ξ.cause),
+                    ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                      ξ.ρ.increase(ξ.index, 3, ξ.accum, ξ.result, ξ.cause),
+                      ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                        ξ.ρ.increase(ξ.index, 4, ξ.accum, ξ.result, ξ.cause),
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Unknown byte format (%x), can't recognize character",
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                          )
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/bytes-as-array.phi](./org/eolang/structs/bytes-as-array.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        bytes-as-array(bts) ↦ ⟦
+          bytes-size ↦ Φ̇.dataized(ξ.bts.size).as-bytes,
+          φ ↦ ξ.slice-byte(Φ̇.tuple.empty, 0),
+          slice-byte(tup, index) ↦ ⟦
+            φ ↦ ξ.index.lt(ξ.ρ.bytes-size).if(
+              ξ.ρ.slice-byte(
+                ξ.tup.with(ξ.ρ.bts.slice(ξ.index, 1)), ξ.index.plus(1)
+              ),
+              ξ.tup
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/hash-code-of.phi](./org/eolang/structs/hash-code-of.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        hash-code-of(input) ↦ ⟦
+          input-as-bytes ↦ Φ̇.dataized(ξ.input.as-bytes).as-bytes,
+          size ↦ Φ̇.dataized(ξ.input-as-bytes.size).as-bytes,
+          magic-number ↦ 31.as-i64,
+          φ ↦ ξ.rec-hash-code(0, 0),
+          rec-hash-code(acc, index) ↦ ⟦
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.acc.as-number,
+              ξ.ρ.rec-hash-code(
+                ξ.ρ.magic-number.times(ξ.acc).plus(
+                  Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(
+                    ξ.ρ.input-as-bytes.slice(ξ.index, 1)
+                  ).as-i64
+                ),
+                ξ.index.plus(1)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/list.phi](./org/eolang/structs/list.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        list(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-empty() ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.origin.length)
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.ρ.origin.with(ξ.x))
+          ⟧,
+          withi(index, item) ↦ ⟦
+            φ ↦ ξ.ρ.head(ξ.index).with(ξ.item).concat(
+              ξ.ρ.tail(ξ.ρ.origin.length.minus(ξ.index))
+            )
+          ⟧,
+          reducedi(start, func) ↦ ⟦
+            origin-len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.origin-len).if(ξ.start, ξ.rec-reduced(ξ.start, 0.as-bytes)),
+            rec-reduced(accum, index) ↦ ⟦
+              idx-as-number ↦ ξ.index.as-number,
+              next-index ↦ Φ̇.dataized(1.plus(ξ.idx-as-number)).as-bytes,
+              φ ↦ ξ.next-index.eq(ξ.ρ.origin-len).if(
+                ξ.accumulated, ξ.ρ.rec-reduced(ξ.accumulated, ξ.next-index)
+              ),
+              accumulated ↦ ξ.ρ.func(
+                ξ.accum, ξ.ρ.ρ.origin.at(ξ.idx-as-number), ξ.idx-as-number
+              )
+            ⟧
+          ⟧,
+          reduced(start, func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(ξ.start, ξ.auto-named-attr-at-83-42),
+            auto-named-attr-at-83-42(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.accum, ξ.item)
+            ⟧
+          ⟧,
+          mappedi(func) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-93-24)
+            ),
+            auto-named-attr-at-93-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.with(ξ.ρ.func(ξ.item, ξ.idx))
+            ⟧
+          ⟧,
+          mapped(func) ↦ ⟦
+            φ ↦ ξ.ρ.mappedi(ξ.auto-named-attr-at-103-30),
+            auto-named-attr-at-103-30(item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          eachi(func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-113-22),
+            auto-named-attr-at-113-22(acc, item, index) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.acc), ξ.ρ.func(ξ.item, ξ.index)
+                )
+              )
+            ⟧
+          ⟧,
+          each(func) ↦ ⟦
+            φ ↦ ξ.ρ.eachi(ξ.auto-named-attr-at-124-32),
+            auto-named-attr-at-124-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          withouti(i) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-131-24)
+            ),
+            auto-named-attr-at-131-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.i.eq(ξ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          without(element) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-142-20)
+            ),
+            auto-named-attr-at-142-20(accum, item) ↦ ⟦
+              φ ↦ ξ.ρ.element.eq(ξ.item).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          eq(other) ↦ ⟦
+            φ ↦ ξ.ρ.origin.length.eq(ξ.other.length).and(
+              ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-157-24)
+            ),
+            auto-named-attr-at-157-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.and(ξ.item.eq(ξ.ρ.other.at(ξ.idx)))
+            ⟧
+          ⟧,
+          concat(passed) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.passed).reduced(
+              ξ.ρ,
+              ⟦
+                φ ↦ ξ.accum.with(ξ.item),
+                accum ↦ ∅,
+                item ↦ ∅
+              ⟧
+            )
+          ⟧,
+          index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-177-24),
+            auto-named-attr-at-177-24(accum, item, index) ↦ ⟦
+              φ ↦ -1.eq(ξ.accum).and(ξ.item.eq(ξ.ρ.wanted)).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          last-index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-190-24),
+            auto-named-attr-at-190-24(accum, item, index) ↦ ⟦
+              φ ↦ ξ.item.eq(ξ.ρ.wanted).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          contains(element) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.element)).not
+          ⟧,
+          sorted() ↦ ⟦
+            φ ↦ ξ.ρ
+          ⟧,
+          filteredi(func) ↦ ⟦
+            origin-length ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ ξ.ρ.ρ.list(ξ.rec-filtered(0.as-bytes, Φ̇.tuple.empty)),
+            rec-filtered(idx-as-bytes, accum) ↦ ⟦
+              original ↦ ξ.ρ.ρ.origin,
+              index ↦ ξ.idx-as-bytes.as-number,
+              item ↦ ξ.ρ.ρ.origin.at(ξ.index),
+              φ ↦ ξ.idx-as-bytes.eq(ξ.ρ.origin-length).if(
+                ξ.accum,
+                ξ.ρ.rec-filtered(
+                  1.plus(ξ.index).as-bytes,
+                  ξ.ρ.func(ξ.item, ξ.index).if(ξ.accum.with(ξ.item), ξ.accum)
+                )
+              )
+            ⟧
+          ⟧,
+          filtered(func) ↦ ⟦
+            φ ↦ ξ.ρ.filteredi(ξ.auto-named-attr-at-243-32),
+            auto-named-attr-at-243-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          head(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            φ ↦ Φ̇.switch(
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty,
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, 0.eq(ξ.idx)), ξ.ρ.ρ.list(Φ̇.tuple.empty)
+                      )
+                    ),
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, 0.gt(ξ.idx)), ξ.ρ.tail(ξ.index.as-number.neg)
+                    )
+                  ),
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin.length.lte(ξ.idx)), ξ.ρ
+                  )
+                ),
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.true),
+                  ξ.ρ.ρ.list(
+                    ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-264-32)
+                  )
+                )
+              )
+            ),
+            auto-named-attr-at-264-32(accum, item, index) ↦ ⟦
+              φ ↦ ξ.index.gte(ξ.ρ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          tail(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            start ↦ Φ̇.dataized(ξ.ρ.origin.length.minus(ξ.idx.as-number)).as-bytes,
+            φ ↦ 0.gt(ξ.start).if(
+              ξ.ρ,
+              ξ.ρ.ρ.list(
+                ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-280-26)
+              )
+            ),
+            auto-named-attr-at-280-26(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.idx.gte(ξ.ρ.start).if(ξ.accum.with(ξ.item), ξ.accum)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/map.phi](./org/eolang/structs/map.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        map(pairs) ↦ ⟦
+          φ ↦ ξ.auto-named-attr-at-37-6.initialized,
+          entry(key, value) ↦ ⟦⟧,
+          initialized(entries) ↦ ⟦
+            initialized ↦ ξ,
+            size ↦ ξ.entries.length,
+            keys() ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.key,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            values() ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.value,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            has(key) ↦ ⟦
+              φ ↦ ξ.ρ.found(ξ.key).exists
+            ⟧,
+            found(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.size.eq(0).if(ξ.not-found, ξ.rec-key-search(ξ.not-found, 0)),
+              rec-key-search(found, index) ↦ ⟦
+                entry ↦ ξ.ρ.ρ.entries.at(ξ.index),
+                φ ↦ ξ.found.exists.or(ξ.ρ.ρ.size.eq(ξ.index)).if(
+                  ξ.found,
+                  ξ.ρ.rec-key-search(
+                    ξ.ρ.hash.eq(ξ.entry.hash).if(
+                      ξ.auto-named-attr-at-133-54, ξ.found
+                    ),
+                    ξ.index.plus(1)
+                  )
+                ),
+                auto-named-attr-at-133-54() ↦ ⟦
+                  exists ↦ Φ̇.true,
+                  get ↦ ξ.ρ.entry.value
+                ⟧
+              ⟧,
+              not-found() ↦ ⟦
+                exists ↦ Φ̇.false,
+                get ↦ Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Object by hash code %d from given key does not exists",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.hash)
+                  )
+                )
+              ⟧
+            ⟧,
+            with(key, value) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-153-50
+                ).origin.with(ξ.auto-named-attr-at-154-12)
+              ),
+              auto-named-attr-at-153-50(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧,
+              auto-named-attr-at-154-12() ↦ ⟦
+                key ↦ ξ.ρ.key,
+                value ↦ ξ.ρ.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧,
+            without(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-167-48
+                ).origin
+              ),
+              auto-named-attr-at-167-48(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧
+            ⟧
+          ⟧,
+          auto-named-attr-at-37-6() ↦ ⟦
+            pairs-size ↦ Φ̇.dataized(ξ.ρ.pairs.length).as-bytes,
+            φ ↦ ξ.ρ.initialized(
+              ξ.pairs-size.eq(0).if(
+                Φ̇.tuple.empty,
+                ξ.rec-rebuild(Φ̇.tuple.empty, 0, Φ̇.structs.list(Φ̇.tuple.empty))
+              )
+            ),
+            rec-rebuild(accum, index, hashes) ↦ ⟦
+              entry ↦ ξ.ρ.ρ.pairs.at(ξ.index),
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.entry.key)).as-bytes,
+              φ ↦ ξ.ρ.pairs-size.eq(ξ.index).if(
+                ξ.accum,
+                ξ.ρ.rec-rebuild(
+                  ξ.hashes.contains(ξ.hash).if(
+                    ξ.accum, ξ.accum.with(ξ.auto-named-attr-at-59-18)
+                  ),
+                  ξ.index.plus(1),
+                  ξ.hashes.with(ξ.hash)
+                )
+              ),
+              auto-named-attr-at-59-18() ↦ ⟦
+                key ↦ ξ.ρ.entry.key,
+                value ↦ ξ.ρ.entry.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/range-of-ints.phi](./org/eolang/structs/range-of-ints.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        range-of-ints(start, end) ↦ ⟦
+          φ ↦ 0.eq(ξ.start).or(1.eq(ξ.start.div(ξ.start))).and(
+            0.eq(ξ.end).or(1.eq(ξ.end.div(ξ.end)))
+          ).if(
+            Φ̇.structs.range(ξ.auto-named-attr-at-42-8, ξ.end),
+            Φ̇.error("Some of the arguments are not integers")
+          ),
+          auto-named-attr-at-42-8() ↦ ⟦
+            build(num) ↦ ⟦
+              φ ↦ ξ.num,
+              next ↦ ξ.ρ.build(1.plus(ξ.φ))
+            ⟧,
+            φ ↦ ξ.build(ξ.ρ.start)
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/range.phi](./org/eolang/structs/range.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        range(start, end) ↦ ⟦
+          φ ↦ Φ̇.structs.list(
+            ξ.start.lt(ξ.end).if(
+              ξ.appended(Φ̇.tuple(Φ̇.tuple.empty, ξ.start), ξ.start.next), Φ̇.tuple.empty
+            )
+          ),
+          appended(acc, current) ↦ ⟦
+            φ ↦ ξ.current.lt(ξ.ρ.end).if(
+              ξ.ρ.appended(ξ.acc.with(ξ.current), ξ.current.next), ξ.acc
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/structs/set.phi](./org/eolang/structs/set.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        set(lst) ↦ ⟦
+          φ ↦ ξ.initialized(
+            Φ̇.structs.map(
+              Φ̇.structs.list(ξ.lst).mapped(
+                ⟦
+                  φ ↦ Φ̇.structs.map.entry(ξ.item, Φ̇.true),
+                  item ↦ ∅
+                ⟧
+              ).origin
+            )
+          ).initialized,
+          initialized(map) ↦ ⟦
+            initialized ↦ ξ,
+            φ ↦ ξ.map.keys,
+            size ↦ ξ.map.size,
+            with(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.with(ξ.item, Φ̇.true))
+            ⟧,
+            without(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.without(ξ.item))
+            ⟧,
+            has(item) ↦ ⟦
+              φ ↦ ξ.ρ.map.has(ξ.item)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/switch.phi](./org/eolang/switch.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      switch(cases) ↦ ⟦
+        len ↦ Φ̇.dataized(ξ.cases.length).as-bytes,
+        φ ↦ ξ.len.eq(0).if(Φ̇.error("switch cases are empty"), ξ.case-at(0)),
+        case-at(index) ↦ ⟦
+          case ↦ ξ.ρ.cases.at(ξ.index),
+          φ ↦ ξ.index.eq(ξ.ρ.len).if(
+            Φ̇.true, ξ.case.at(0).if(ξ.case.at(1), ξ.ρ.case-at(ξ.index.plus(1)))
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/getenv.phi](./org/eolang/sys/getenv.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        getenv(name) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            Φ̇.sys.win32(
+              "GetEnvironmentVariable", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.name), 512)
+            ),
+            Φ̇.sys.posix("getenv", Φ̇.tuple(Φ̇.tuple.empty, ξ.name))
+          ).output
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/line-separator.phi](./org/eolang/sys/line-separator.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        line-separator() ↦ ⟦
+          φ ↦ Φ̇.string(Φ̇.sys.os.is-windows.if("\r\n", "\n").as-bytes)
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/os.phi](./org/eolang/sys/os.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        os() ↦ ⟦
+          φ ↦ ξ.name,
+          is-windows() ↦ ⟦
+            os-name ↦ Φ̇.dataized(ξ.ρ.name).as-bytes,
+            φ ↦ ξ.os-name.size.gt(6).and(ξ.os-name.slice(0, 7).eq("Windows"))
+          ⟧,
+          is-linux ↦ Φ̇.txt.regex("/linux/i").matches(ξ.name).as-bool,
+          is-macos ↦ Φ̇.txt.regex("/mac/i").matches(ξ.name).as-bool,
+          name() ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_os_name
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/posix.phi](./org/eolang/sys/posix.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        posix(name, args) ↦ ⟦
+          stdin-fileno ↦ 0,
+          stdout-fileno ↦ 1,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          inaddr-none ↦ -1,
+          φ() ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_posix_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          timeval(tv-sec, tv-usec) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/sys/win32.phi](./org/eolang/sys/win32.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        win32(name, args) ↦ ⟦
+          std-input-handle ↦ -10,
+          std-output-handle ↦ -11,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          invalid-socket ↦ -1,
+          socket-error ↦ -1,
+          inaddr-none ↦ -1,
+          winsock-version-2-2 ↦ Φ̇.bytes(⟦ Δ ⤍ 02-02 ⟧),
+          φ() ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_win32_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          system-time(year, month, day, day-of-week, hour, minute, second, milliseconds) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/true.phi](./org/eolang/true.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      true() ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧),
+        not ↦ Φ̇.false,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.left
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/try.phi](./org/eolang/try.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      try(main, catch, finally) ↦ ⟦
+        λ ⤍ Lorg_eolang_try
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/tuple.phi](./org/eolang/tuple.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      tuple(head, tail) ↦ ⟦
+        empty() ↦ ⟦
+          length ↦ 0,
+          at(i) ↦ ⟦
+            φ ↦ Φ̇.error("Can't get an object from the empty tuple")
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+          ⟧
+        ⟧,
+        length() ↦ ⟦
+          len ↦ Φ̇.dataized(ξ.ρ.head.length.plus(1)).as-bytes,
+          φ ↦ Φ̇.number(ξ.len)
+        ⟧,
+        at(i) ↦ ⟦
+          len ↦ ξ.ρ.length,
+          idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+          index ↦ Φ̇.dataized(0.gt(ξ.idx).if(ξ.len.plus(ξ.idx), ξ.idx)).as-bytes,
+          φ ↦ 0.gt(ξ.index).or(ξ.len.lte(ξ.index)).if(
+            Φ̇.error("Given index is out of tuple bounds"), ξ.at-fast(ξ.ρ, ξ.len)
+          ),
+          at-fast(tup, len) ↦ ⟦
+            φ ↦ ξ.len.plus(-1).gt(ξ.ρ.index).if(
+              ξ.ρ.at-fast(ξ.tup.head, ξ.len.plus(-1)), ξ.tup.tail
+            )
+          ⟧
+        ⟧,
+        with(x) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/regex.phi](./org/eolang/txt/regex.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        regex(expression) ↦ ⟦
+          φ ↦ ξ.compiled,
+          compiled() ↦ ⟦
+            λ ⤍ Lorg_eolang_txt_regex_compiled
+          ⟧,
+          pattern(serialized) ↦ ⟦
+            matches(txt) ↦ ⟦
+              φ ↦ ξ.ρ.match(ξ.txt).next.exists
+            ⟧,
+            match(txt) ↦ ⟦
+              next ↦ ξ.matched-from-index(1, 0).matched,
+              matched-from-index(position, start) ↦ ⟦
+                λ ⤍ Lorg_eolang_txt_regex_pattern_match_matched_from_index
+              ⟧,
+              matched(position, start, from, to, groups) ↦ ⟦
+                matched ↦ ξ,
+                groups-count ↦ ξ.groups.length,
+                exists ↦ ξ.start.gte(0),
+                next ↦ ξ.exists.if(
+                  ξ.ρ.matched-from-index(ξ.position.plus(1), ξ.to).matched,
+                  Φ̇.error("Matched block does not exist, can't get next")
+                ),
+                text ↦ ξ.exists.if(
+                  ξ.group(0), Φ̇.error("Matched block does not exist, can't get text")
+                ),
+                group(index) ↦ ⟦
+                  φ ↦ ξ.ρ.groups.at(ξ.index)
+                ⟧
+              ⟧,
+              not-matched(position) ↦ ⟦
+                φ ↦ ξ.ρ.matched(
+                  ξ.position,
+                  -1,
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'from' position"
+                  ),
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'to' position"
+                  ),
+                  Φ̇.error("Matched block does not exist, can't get groups")
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/sprintf.phi](./org/eolang/txt/sprintf.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        sprintf(format, args) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sprintf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/sscanf.phi](./org/eolang/txt/sscanf.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        sscanf(format, read) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sscanf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/text.phi](./org/eolang/txt/text.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        text(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-alphanumeric ↦ Φ̇.txt.regex("/^[A-Za-z0-9]+$/").matches(ξ.origin),
+          is-alpha ↦ Φ̇.txt.regex("/^[a-zA-Z]+$/").matches(ξ.origin),
+          is-ascii ↦ Φ̇.txt.regex("/^[\\x00-\\x7F]*$/").matches(ξ.origin),
+          slice(start, len) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.text(ξ.ρ.origin.slice(ξ.start, ξ.len))
+          ⟧,
+          trimmed-left() ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.first-non-space-index(0)).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(ξ.idx, Φ̇.number(ξ.len).minus(Φ̇.number(ξ.idx)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.index,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(1)), ξ.index
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed-right() ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(0, ξ.first-non-space-index(Φ̇.number(ξ.len).plus(-1)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ -1.eq(ξ.index).if(
+                0,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(-1)), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed() ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.length).if(ξ.ρ, ξ.ρ.trimmed-left.trimmed-right)
+          ⟧,
+          joined(items) ↦ ⟦
+            delimiter ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            first ↦ ξ.items.at(0),
+            len ↦ Φ̇.dataized(ξ.items.length).as-bytes,
+            not-empty ↦ Φ̇.dataized(
+              1.eq(ξ.len).if(
+                ξ.first, ξ.first.as-bytes.concat(ξ.with-delimiter("".as-bytes, 1))
+              )
+            ).as-bytes,
+            φ ↦ ξ.ρ.ρ.text(0.eq(ξ.len).if("", Φ̇.string(ξ.not-empty))),
+            with-delimiter(acc, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.acc,
+                ξ.ρ.with-delimiter(
+                  ξ.acc.concat(ξ.ρ.delimiter.concat(ξ.ρ.items.at(ξ.index))), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          repeated(times) ↦ ⟦
+            bts ↦ Φ̇.dataized(ξ.ρ.origin.as-bytes).as-bytes,
+            amount ↦ Φ̇.dataized(ξ.times).as-bytes,
+            φ ↦ 0.gt(ξ.amount).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't repeat text %d times", Φ̇.tuple(Φ̇.tuple.empty, ξ.amount)
+                )
+              ),
+              ξ.ρ.ρ.text(
+                0.eq(ξ.amount).if("", Φ̇.string(ξ.rec-repeated(ξ.bts, 1)))
+              )
+            ),
+            rec-repeated(accum, index) ↦ ⟦
+              φ ↦ ξ.ρ.amount.eq(ξ.index).if(
+                ξ.accum, ξ.ρ.rec-repeated(ξ.accum.concat(ξ.ρ.bts), ξ.index.plus(1))
+              )
+            ⟧
+          ⟧,
+          contains(substring) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.substring)).not
+          ⟧,
+          ends-with(substring) ↦ ⟦
+            substr ↦ Φ̇.dataized(ξ.substring).as-bytes,
+            φ ↦ ξ.ρ.index-of(ξ.substr).eq(ξ.ρ.length.minus(ξ.substr.size))
+          ⟧,
+          starts-with(substring) ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.index-of(ξ.substring))
+          ⟧,
+          index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            end ↦ Φ̇.dataized(Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(-1, ξ.rec-index-of-substr(0)),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ ξ.ρ.end.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          last-index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(
+              -1,
+              ξ.rec-index-of-substr(
+                Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))
+              )
+            ),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ 0.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(-1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          up-cased() ↦ ⟦
+            ascii-z ↦ Φ̇.dataized(ξ.ascii("z")).as-bytes,
+            ascii-a ↦ Φ̇.dataized(ξ.ascii("a")).as-bytes,
+            distance ↦ Φ̇.number(ξ.ascii-a).minus(ξ.ascii("A")),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-258-22
+                )
+              )
+            ),
+            ascii(char) ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(ξ.char.as-bytes).as-i64.as-number
+            ⟧,
+            auto-named-attr-at-258-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.minus(ξ.ρ.distance).as-i64.as-bytes.slice(7, 1), ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          low-cased() ↦ ⟦
+            ascii-z ↦ ξ.ρ.up-cased.ascii("Z"),
+            ascii-a ↦ ξ.ρ.up-cased.ascii("A"),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-291-22
+                )
+              )
+            ),
+            auto-named-attr-at-291-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ρ.up-cased.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.plus(ξ.ρ.ρ.up-cased.distance).as-i64.as-bytes.slice(
+                    7, 1
+                  ),
+                  ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          at(i) ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+            index ↦ Φ̇.dataized(
+              0.gt(ξ.idx).if(Φ̇.number(ξ.len).plus(ξ.idx), ξ.idx)
+            ).as-bytes,
+            φ ↦ 0.gt(ξ.index).or(Φ̇.number(ξ.index).gte(ξ.len)).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Given index %d is out of text bounds", Φ̇.tuple(Φ̇.tuple.empty, ξ.index)
+                )
+              ),
+              ξ.ρ.slice(ξ.index, 1)
+            )
+          ⟧,
+          replaced(target, replacement) ↦ ⟦
+            self-as-bytes ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            reinit ↦ Φ̇.string(ξ.self-as-bytes),
+            matched ↦ ξ.target.match(ξ.reinit).next,
+            φ ↦ ξ.matched.exists.not.if(
+              Φ̇.txt.text(ξ.reinit),
+              Φ̇.txt.text(ξ.rec-replaced(ξ.matched, "", ξ.matched.start))
+            ),
+            rec-replaced(block, accum, start) ↦ ⟦
+              φ ↦ ξ.block.exists.if(
+                ξ.ρ.rec-replaced(
+                  ξ.block.next,
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.block.from.minus(ξ.start))
+                  ).concat(ξ.ρ.replacement),
+                  ξ.block.to
+                ),
+                Φ̇.string(
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.ρ.reinit.length.minus(ξ.start))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          as-number() ↦ ⟦
+            scanned ↦ Φ̇.txt.sscanf("%f", ξ.ρ.origin),
+            φ ↦ ξ.scanned.length.eq(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't convert text %s to number", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin)
+                )
+              ),
+              ξ.scanned.tail
+            )
+          ⟧,
+          split(delimiter) ↦ ⟦
+            delim ↦ Φ̇.dataized(ξ.delimiter).as-bytes,
+            self-as-bytes ↦ ξ.ρ.origin.as-bytes,
+            len ↦ Φ̇.dataized(ξ.self-as-bytes.size).as-bytes,
+            φ ↦ ξ.len.eq(0).if(Φ̇.tuple.empty, ξ.rec-split(Φ̇.tuple.empty, 0, 0)),
+            rec-split(accum, start, current) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.current).if(
+                ξ.with-substr,
+                ξ.ρ.delim.eq(ξ.ρ.self-as-bytes.slice(ξ.current, 1)).if(
+                  ξ.ρ.rec-split(
+                    ξ.with-substr, ξ.current.plus(1), ξ.current.plus(1)
+                  ),
+                  ξ.ρ.rec-split(ξ.accum, ξ.start, ξ.current.plus(1))
+                )
+              ),
+              with-substr ↦ ξ.accum.with(
+                Φ̇.string(
+                  ξ.ρ.self-as-bytes.slice(ξ.start, ξ.current.minus(ξ.start))
+                )
+              )
+            ⟧
+          ⟧,
+          chained(others) ↦ ⟦
+            φ ↦ 0.eq(ξ.others.length).if(
+              ξ.ρ,
+              ξ.ρ.ρ.text(
+                Φ̇.string(
+                  Φ̇.structs.list(ξ.others).reduced(
+                    ξ.ρ.origin.as-bytes,
+                    ⟦
+                      φ ↦ ξ.accum.concat(ξ.str.as-bytes),
+                      accum ↦ ∅,
+                      str ↦ ∅
+                    ⟧
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/while.phi](./org/eolang/while.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      while(condition, body) ↦ ⟦
+        φ ↦ ξ.condition(0).as-bool.if(ξ.loop(0), Φ̇.false),
+        loop(index) ↦ ⟦
+          current ↦ ξ.ρ.body(ξ.index),
+          φ ↦ ξ.ρ.condition(ξ.index.plus(1)).as-bool.if(
+            Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.current), ξ.ρ.loop(ξ.index.plus(1))
+              )
+            ),
+            ξ.current
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
diff --git a/data/0.49.4/org/eolang/bytes.phi b/data/0.49.4/org/eolang/bytes.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/bytes.phi
@@ -0,0 +1,95 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      bytes(data) ↦ ⟦
+        φ ↦ ξ.data,
+        as-bytes ↦ ξ,
+        as-bool ↦ ξ.eq(Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)),
+        as-number() ↦ ⟦
+          φ ↦ ξ.ρ.eq(Φ̇.nan.as-bytes).if(
+            Φ̇.nan,
+            ξ.ρ.eq(Φ̇.positive-infinity.as-bytes).if(
+              Φ̇.positive-infinity,
+              ξ.ρ.eq(Φ̇.negative-infinity.as-bytes).if(
+                Φ̇.negative-infinity,
+                ξ.ρ.size.eq(8).if(
+                  Φ̇.number(ξ.ρ),
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Can't convert non 8 length bytes to a number, bytes are %x", Φ̇.tuple.empty
+                    )
+                  )
+                )
+              )
+            )
+          )
+        ⟧,
+        eq(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_eq
+        ⟧,
+        size() ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_size
+        ⟧,
+        slice(start, len) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_slice
+        ⟧,
+        as-i64() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(8).if(
+            Φ̇.i64(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 8 length bytes to i64, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i32() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(4).if(
+            Φ̇.i32(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 4 length bytes to i32, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i16() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(2).if(
+            Φ̇.i16(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 2 length bytes to i16, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        and(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_and
+        ⟧,
+        or(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_or
+        ⟧,
+        xor(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_xor
+        ⟧,
+        not() ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_not
+        ⟧,
+        left(x) ↦ ⟦
+          φ ↦ ξ.ρ.right(ξ.x.neg)
+        ⟧,
+        right(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_right
+        ⟧,
+        concat(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_concat
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/cti.phi b/data/0.49.4/org/eolang/cti.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/cti.phi
@@ -0,0 +1,11 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      cti(delegate, level, message) ↦ ⟦
+        φ ↦ ξ.delegate
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/dataized.phi b/data/0.49.4/org/eolang/dataized.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/dataized.phi
@@ -0,0 +1,18 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      dataized(target) ↦ ⟦
+        φ ↦ Φ̇.try(
+          ξ.target,
+          ⟦
+            φ ↦ Φ̇.error(ξ.ex),
+            ex ↦ ∅
+          ⟧,
+          Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)
+        )
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/error.phi b/data/0.49.4/org/eolang/error.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/error.phi
@@ -0,0 +1,11 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      error(message) ↦ ⟦
+        λ ⤍ Lorg_eolang_error
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/false.phi b/data/0.49.4/org/eolang/false.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/false.phi
@@ -0,0 +1,21 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      false() ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+        not ↦ Φ̇.true,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.right
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/fs/dir.phi b/data/0.49.4/org/eolang/fs/dir.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/fs/dir.phi
@@ -0,0 +1,71 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      fs() ↦ ⟦
+        dir(file) ↦ ⟦
+          φ ↦ ξ.file,
+          is-directory ↦ Φ̇.true,
+          made() ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.mkdir), ξ.ρ))
+            ),
+            mkdir() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_made_mkdir
+            ⟧
+          ⟧,
+          walk(glob) ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_dir_walk
+          ⟧,
+          deleted() ↦ ⟦
+            walked ↦ ξ.ρ.walk("**").at.ρ,
+            len ↦ Φ̇.dataized(ξ.walked.length).as-bytes,
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.rec-delete(ξ.walked, 0)), ξ.ρ
+                )
+              ),
+              ξ.ρ
+            ),
+            rec-delete(tup, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                Φ̇.true,
+                Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.tup.tail.deleted.exists),
+                    ξ.ρ.rec-delete(ξ.tup.head, ξ.index.plus(1))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          tmpfile() ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.fs.file(Φ̇.string(ξ.touch.as-bytes)),
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Directory %s does not exist, can't create temporary file",
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+                )
+              )
+            ),
+            touch() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_dir_tmpfile_touch
+            ⟧
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            φ ↦ Φ̇.error(
+              Φ̇.txt.sprintf(
+                "The file %s is a directory, can't open for I/O operations",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.path)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/fs/file.phi b/data/0.49.4/org/eolang/fs/file.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/fs/file.phi
@@ -0,0 +1,164 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      fs() ↦ ⟦
+        file(path) ↦ ⟦
+          φ ↦ ξ.path,
+          is-directory() ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_is_directory
+          ⟧,
+          exists() ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_exists
+          ⟧,
+          touched() ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              ξ.ρ, Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.touch), ξ.ρ))
+            ),
+            touch() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_touched_touch
+            ⟧
+          ⟧,
+          deleted() ↦ ⟦
+            φ ↦ ξ.ρ.exists.if(
+              Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.delete), ξ.ρ)), ξ.ρ
+            ),
+            delete() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_deleted_delete
+            ⟧
+          ⟧,
+          size() ↦ ⟦
+            λ ⤍ Lorg_eolang_fs_file_size
+          ⟧,
+          moved(target) ↦ ⟦
+            φ ↦ Φ̇.fs.file(Φ̇.string(ξ.move.as-bytes)),
+            move() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_moved_move
+            ⟧
+          ⟧,
+          as-path() ↦ ⟦
+            φ ↦ Φ̇.fs.path(ξ.ρ.path).determined
+          ⟧,
+          open(mode, scope) ↦ ⟦
+            access ↦ Φ̇.dataized(ξ.mode).as-bytes,
+            read ↦ ξ.access.eq("r"),
+            write ↦ ξ.access.eq("w"),
+            append ↦ ξ.access.eq("a"),
+            read-write ↦ ξ.access.eq("r+"),
+            write-read ↦ ξ.access.eq("w+"),
+            read-append ↦ ξ.access.eq("a+"),
+            can-read ↦ ξ.read.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).as-bool,
+            can-write ↦ ξ.write.or(ξ.read-write).or(ξ.write-read.or(ξ.read-append)).or(
+              ξ.append
+            ).as-bool,
+            must-exists ↦ ξ.read.or(ξ.read-write).as-bool,
+            truncate ↦ ξ.write.or(ξ.write-read).as-bool,
+            φ ↦ ξ.can-read.not.and(ξ.can-write.not).if(
+              Φ̇.error(
+                "Wrong access mod. Only next modes are available: 'r', 'w', 'a', 'r+', 'w+', 'a+'"
+              ),
+              ξ.ρ.exists.not.if(
+                ξ.must-exists.if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "File must exist for given access mod: '%s'",
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.access)
+                    )
+                  ),
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.touched.touch), ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  )
+                ),
+                ξ.truncate.if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.deleted.delete), ξ.ρ.touched.touch
+                        ),
+                        ξ.process-file
+                      ),
+                      ξ.ρ
+                    )
+                  ),
+                  Φ̇.seq(Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.process-file), ξ.ρ))
+                )
+              )
+            ),
+            process-file() ↦ ⟦
+              λ ⤍ Lorg_eolang_fs_file_open_process_file
+            ⟧,
+            file-stream() ↦ ⟦
+              read(size) ↦ ⟦
+                φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+                input-block(buffer) ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ ξ.buffer,
+                  read(size) ↦ ⟦
+                    read-bytes ↦ Φ̇.dataized(ξ.ρ.ρ.read-bytes(ξ.size)).as-bytes,
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-read.not.if(
+                      ξ.auto-named-attr-at-216-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-216-18() ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't read from file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                read-bytes(size) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_read_read_bytes
+                ⟧
+              ⟧,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.output-block.write(ξ.buffer).self,
+                output-block() ↦ ⟦
+                  self ↦ ξ,
+                  φ ↦ Φ̇.true,
+                  write(buffer) ↦ ⟦
+                    φ ↦ ξ.ρ.ρ.ρ.ρ.can-write.not.if(
+                      ξ.auto-named-attr-at-258-18,
+                      Φ̇.seq(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.written-bytes(ξ.buffer)), ξ.ρ.ρ.output-block
+                        )
+                      )
+                    ).self,
+                    auto-named-attr-at-258-18() ↦ ⟦
+                      self ↦ ξ,
+                      φ ↦ Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Can't write to file with provided access mode '%s'",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.ρ.ρ.access)
+                        )
+                      )
+                    ⟧
+                  ⟧
+                ⟧,
+                written-bytes(buffer) ↦ ⟦
+                  λ ⤍ Lorg_eolang_fs_file_open_file_stream_write_written_bytes
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/fs/path.phi b/data/0.49.4/org/eolang/fs/path.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/fs/path.phi
@@ -0,0 +1,273 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      fs() ↦ ⟦
+        path(uri) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win32(Φ̇.string(ξ.uri.as-bytes)), ξ.posix(Φ̇.string(ξ.uri.as-bytes))
+          ).determined,
+          joined(paths) ↦ ⟦
+            joined-path ↦ Φ̇.string(
+              Φ̇.txt.text(ξ.ρ.separator).joined(ξ.paths).as-bytes
+            ),
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.ρ.win32(ξ.joined-path), ξ.ρ.posix(ξ.joined-path)
+            ).normalized
+          ⟧,
+          separator() ↦ ⟦
+            φ ↦ Φ̇.sys.os.is-windows.if(ξ.ρ.win32.separator, ξ.ρ.posix.separator)
+          ⟧,
+          posix(uri) ↦ ⟦
+            determined ↦ ξ,
+            separator ↦ "/",
+            as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+            as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+            φ ↦ ξ.uri,
+            is-absolute() ↦ ⟦
+              φ ↦ ξ.ρ.uri.length.gt(0).and(
+                ξ.ρ.uri.as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+              )
+            ⟧,
+            normalized() ↦ ⟦
+              uri-as-bytes ↦ ξ.ρ.uri.as-bytes,
+              is-absolute ↦ ξ.ρ.is-absolute.as-bool,
+              has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                  ξ.ρ.separator
+                )
+              ),
+              path ↦ Φ̇.txt.text(ξ.ρ.separator).joined(
+                Φ̇.structs.list(Φ̇.txt.text(ξ.ρ.uri).split(ξ.ρ.separator)).reduced(
+                  Φ̇.tuple.empty, ξ.auto-named-attr-at-102-25
+                )
+              ),
+              normalized ↦ ξ.ρ.uri.length.eq(0).if(
+                ".",
+                ξ.is-absolute.if(ξ.ρ.separator.concat(ξ.path), ξ.path).concat(
+                  ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                )
+              ).as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                ξ.normalized.eq("//").if("/", Φ̇.string(ξ.normalized))
+              ).determined,
+              auto-named-attr-at-102-25(accum, segment) ↦ ⟦
+                φ ↦ ξ.segment.eq("..").if(
+                  ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                    ξ.accum.head, ξ.ρ.is-absolute.not.if(ξ.accum.with(ξ.segment), ξ.accum)
+                  ),
+                  ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                    ξ.accum, ξ.accum.with(ξ.segment)
+                  )
+                )
+              ⟧
+            ⟧,
+            resolved(other) ↦ ⟦
+              other-as-bytes ↦ ξ.other.as-bytes,
+              φ ↦ ξ.ρ.ρ.posix(
+                Φ̇.string(
+                  ξ.other-as-bytes.slice(0, 1).eq(ξ.ρ.separator).if(
+                    ξ.other-as-bytes, ξ.ρ.uri.concat(ξ.ρ.separator).concat(ξ.other-as-bytes)
+                  )
+                )
+              ).normalized
+            ⟧,
+            basename() ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              slice-start-idx ↦ Φ̇.dataized(
+                ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+              ).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                  ξ.pth,
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            extname() ↦ ⟦
+              base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+              slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+              φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                "",
+                Φ̇.string(
+                  ξ.txt.slice(
+                    ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                  ).as-bytes
+                )
+              )
+            ⟧,
+            dirname() ↦ ⟦
+              pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+              txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+              len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+              φ ↦ Φ̇.string(
+                ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                  ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                )
+              )
+            ⟧
+          ⟧,
+          win32(uri) ↦ ⟦
+            separator ↦ "\\",
+            φ ↦ ξ.validated(
+              Φ̇.string(ξ.validated.separated-correctly(ξ.uri).as-bytes)
+            ).determined,
+            validated(uri) ↦ ⟦
+              determined ↦ ξ,
+              separator ↦ ξ.ρ.separator,
+              as-file ↦ Φ̇.fs.file(ξ.uri).size.ρ,
+              as-dir ↦ Φ̇.fs.dir(Φ̇.fs.file(ξ.uri)).made.ρ,
+              φ ↦ ξ.uri,
+              is-drive-relative(uri) ↦ ⟦
+                φ ↦ Φ̇.txt.regex("/^[a-zA-Z]:/").matches(ξ.uri).as-bool
+              ⟧,
+              is-root-relative(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(0, 1).eq(ξ.ρ.separator)
+                )
+              ⟧,
+              separated-correctly(uri) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.uri).as-bytes,
+                pth ↦ Φ̇.txt.text(Φ̇.string(ξ.uri-as-bytes)),
+                replaced ↦ Φ̇.dataized(
+                  ξ.pth.replaced(Φ̇.txt.regex("/\\//"), ξ.ρ.separator)
+                ).as-bytes,
+                φ ↦ ξ.pth.index-of(ξ.ρ.ρ.ρ.ρ.path.posix.separator).eq(-1).if(
+                  Φ̇.string(ξ.uri-as-bytes), Φ̇.string(ξ.replaced)
+                )
+              ⟧,
+              is-absolute() ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                φ ↦ ξ.uri-as-bytes.size.eq(0).if(
+                  Φ̇.false,
+                  ξ.ρ.is-root-relative(ξ.uri-as-bytes).or(
+                    ξ.uri-as-bytes.size.gt(1).and(
+                      ξ.ρ.is-drive-relative(ξ.uri-as-bytes)
+                    )
+                  )
+                )
+              ⟧,
+              normalized() ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.uri-as-bytes).as-bool,
+                is-root-relative ↦ ξ.ρ.is-root-relative(ξ.uri-as-bytes).as-bool,
+                driveless ↦ Φ̇.dataized(
+                  ξ.is-drive-relative.if(
+                    ξ.uri-as-bytes.slice(2, ξ.uri-as-bytes.size.plus(-2)), ξ.uri-as-bytes
+                  )
+                ).as-bytes,
+                has-trailing-slash ↦ ξ.uri-as-bytes.size.gt(0).and(
+                  ξ.uri-as-bytes.slice(ξ.uri-as-bytes.size.plus(-1), 1).eq(
+                    ξ.ρ.separator
+                  )
+                ),
+                path ↦ Φ̇.dataized(
+                  Φ̇.txt.text(ξ.ρ.separator).joined(
+                    Φ̇.structs.list(
+                      Φ̇.txt.text(ξ.driveless).split(ξ.ρ.separator)
+                    ).reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-357-27)
+                  )
+                ).as-bytes,
+                normalized ↦ ξ.driveless.size.eq(0).if(
+                  ".",
+                  ξ.is-drive-relative.if(
+                    ξ.driveless.slice(0, 1).eq(ξ.ρ.separator).if(
+                      ξ.ρ.uri.slice(0, 3), ξ.ρ.uri.slice(0, 2)
+                    ),
+                    ξ.is-root-relative.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  ).concat(ξ.path).concat(
+                    ξ.has-trailing-slash.if(ξ.ρ.separator, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+                  )
+                ).as-bytes,
+                φ ↦ ξ.ρ.ρ.validated(
+                  ξ.normalized.eq("\\\\").if(
+                    ξ.ρ.separator, Φ̇.string(ξ.normalized)
+                  )
+                ).determined,
+                auto-named-attr-at-357-27(accum, segment) ↦ ⟦
+                  φ ↦ ξ.segment.eq("..").if(
+                    ξ.accum.length.gt(0).and(ξ.accum.tail.eq("..").not).if(
+                      ξ.accum.head,
+                      ξ.ρ.is-root-relative.not.and(ξ.ρ.is-drive-relative.not).if(
+                        ξ.accum.with(ξ.segment), ξ.accum
+                      )
+                    ),
+                    ξ.segment.eq(".").or(ξ.segment.eq("")).if(
+                      ξ.accum, ξ.accum.with(ξ.segment)
+                    )
+                  )
+                ⟧
+              ⟧,
+              resolved(other) ↦ ⟦
+                uri-as-bytes ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                valid-other ↦ Φ̇.dataized(ξ.ρ.separated-correctly(ξ.other)).as-bytes,
+                other-is-drive-relative ↦ ξ.ρ.is-drive-relative(ξ.valid-other).as-bool,
+                other-is-root-relative ↦ ξ.ρ.is-root-relative(ξ.valid-other).as-bool,
+                φ ↦ ξ.ρ.ρ.validated(
+                  Φ̇.string(
+                    ξ.other-is-drive-relative.if(
+                      ξ.valid-other,
+                      ξ.other-is-root-relative.if(
+                        ξ.ρ.is-drive-relative(ξ.uri-as-bytes).if(
+                          ξ.uri-as-bytes.slice(0, 2).concat(ξ.valid-other), ξ.valid-other
+                        ),
+                        ξ.uri-as-bytes.concat(ξ.ρ.separator).concat(
+                          ξ.valid-other
+                        )
+                      )
+                    )
+                  )
+                ).normalized
+              ⟧,
+              basename() ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                slice-start-idx ↦ Φ̇.dataized(
+                  ξ.txt.last-index-of(ξ.ρ.separator).plus(1)
+                ).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.slice-start-idx.eq(0)).if(
+                    ξ.pth,
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              extname() ↦ ⟦
+                base ↦ Φ̇.dataized(ξ.ρ.basename).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.base)),
+                slice-start-idx ↦ Φ̇.dataized(ξ.txt.last-index-of(".")).as-bytes,
+                φ ↦ ξ.base.size.eq(0).or(ξ.slice-start-idx.eq(-1)).if(
+                  "",
+                  Φ̇.string(
+                    ξ.txt.slice(
+                      ξ.slice-start-idx, ξ.txt.length.minus(Φ̇.number(ξ.slice-start-idx))
+                    ).as-bytes
+                  )
+                )
+              ⟧,
+              dirname() ↦ ⟦
+                pth ↦ Φ̇.dataized(ξ.ρ.uri).as-bytes,
+                txt ↦ Φ̇.txt.text(Φ̇.string(ξ.pth)),
+                len ↦ Φ̇.dataized(ξ.txt.last-index-of(ξ.ρ.separator)).as-bytes,
+                φ ↦ Φ̇.string(
+                  ξ.pth.size.eq(0).or(ξ.len.eq(-1)).if(
+                    ξ.pth, ξ.txt.slice(0, ξ.len).as-bytes
+                  )
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/fs/tmpdir.phi b/data/0.49.4/org/eolang/fs/tmpdir.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/fs/tmpdir.phi
@@ -0,0 +1,39 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      fs() ↦ ⟦
+        tmpdir() ↦ ⟦
+          φ ↦ Φ̇.fs.dir(Φ̇.fs.file(Φ̇.string(ξ.os-tmp-dir))),
+          os-tmp-dir ↦ Φ̇.dataized(ξ.os-tmp-dir-1).as-bytes,
+          os-tmp-dir-1() ↦ ⟦
+            tmpdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TMPDIR")).as-bytes,
+            tmp ↦ Φ̇.dataized(Φ̇.sys.getenv("TMP")).as-bytes,
+            temp ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMP")).as-bytes,
+            tempdir ↦ Φ̇.dataized(Φ̇.sys.getenv("TEMPDIR")).as-bytes,
+            userprofile ↦ Φ̇.dataized(Φ̇.sys.getenv("USERPROFILE")).as-bytes,
+            φ ↦ Φ̇.sys.os.is-windows.if(
+              ξ.tmp.eq("").if(
+                ξ.temp.eq("").if(
+                  ξ.userprofile.eq("").if("C:\\Windows", ξ.userprofile), ξ.temp
+                ),
+                ξ.tmp
+              ),
+              ξ.tmpdir.eq("").if(
+                ξ.tmp.eq("").if(
+                  ξ.temp.eq("").if(
+                    ξ.tempdir.eq("").if("/tmp", ξ.tempdir), ξ.temp
+                  ),
+                  ξ.tmp
+                ),
+                ξ.tmpdir
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/go.phi b/data/0.49.4/org/eolang/go.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/go.phi
@@ -0,0 +1,34 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      go() ↦ ⟦
+        id ↦ Φ̇.dataized(
+          Φ̇.malloc.of(
+            8,
+            ⟦
+              φ ↦ ξ.m.put(ξ.m.id),
+              m ↦ ∅
+            ⟧
+          )
+        ).as-bytes,
+        to(body) ↦ ⟦
+          φ ↦ Φ̇.try(ξ.body(ξ.token), ξ.auto-named-attr-at-63-9, Φ̇.true),
+          token() ↦ ⟦
+            backward ↦ Φ̇.error(ξ.jump(ξ.ρ.ρ.to(ξ.ρ.body))),
+            jump(value) ↦ ⟦
+              id ↦ ξ.ρ.ρ.ρ.id
+            ⟧,
+            forward(res) ↦ ⟦
+              φ ↦ Φ̇.error(ξ.ρ.jump(ξ.res))
+            ⟧
+          ⟧,
+          auto-named-attr-at-63-9(e) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.id.eq(ξ.e.id).if(ξ.e.value, Φ̇.error(ξ.e))
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/i16.phi b/data/0.49.4/org/eolang/i16.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/i16.phi
@@ -0,0 +1,67 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i16(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i16 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32.as-i16),
+        as-i64 ↦ ξ.as-i32.as-i64,
+        as-number ↦ ξ.as-i64.as-number,
+        as-i32() ↦ ⟦
+          λ ⤍ Lorg_eolang_i16_as_i32
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lt(ξ.x.as-i16.as-i32)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lte(ξ.x.as-i16.as-i32)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gt(ξ.x.as-i16.as-i32)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gte(ξ.x.as-i16.as-i32)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.times(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.plus(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i16.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i16 ↦ ξ.x.as-i16,
+          bts ↦ ξ.ρ.as-i32.div(ξ.x-as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧),
+          φ ↦ ξ.x-as-i16.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i16 zero",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i32.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))).if(
+              ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/i32.phi b/data/0.49.4/org/eolang/i32.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/i32.phi
@@ -0,0 +1,79 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i32(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i32 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32),
+        as-number ↦ ξ.as-i64.as-number,
+        as-i64() ↦ ⟦
+          λ ⤍ Lorg_eolang_i32_as_i64
+        ⟧,
+        as-i16() ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 2).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(
+            Φ̇.i16(ξ.ρ.as-bytes.slice(2, 2)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i32 number %d to i16 because it's out of i16 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            )
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lt(ξ.x.as-i32.as-i64)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lte(ξ.x.as-i32.as-i64)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gt(ξ.x.as-i32.as-i64)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gte(ξ.x.as-i32.as-i64)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.times(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.plus(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i32.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i32 ↦ ξ.x.as-i32,
+          bts ↦ ξ.ρ.as-i64.div(ξ.x-as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧),
+          φ ↦ ξ.x-as-i32.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i32 zero", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))).if(
+              ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/i64.phi b/data/0.49.4/org/eolang/i64.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/i64.phi
@@ -0,0 +1,59 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i64(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i64 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64),
+        as-i16 ↦ ξ.as-i32.as-i16,
+        as-i32() ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 4).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(
+            Φ̇.i32(ξ.ρ.as-bytes.slice(4, 4)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i64 number %d to i32 because it's out of i32 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-number)
+              )
+            )
+          )
+        ⟧,
+        as-number() ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_as_number
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.as-i64.gt(ξ.ρ.minus(ξ.ρ.ρ.i64(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(ξ.ρ.ρ.i64(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_div
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/io/bytes-as-input.phi b/data/0.49.4/org/eolang/io/bytes-as-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/io/bytes-as-input.phi
@@ -0,0 +1,36 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        bytes-as-input(bts) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.bts, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+            input-block(data, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                to-read ↦ Φ̇.dataized(ξ.size).as-bytes,
+                available ↦ Φ̇.dataized(ξ.ρ.data.size).as-bytes,
+                next ↦ Φ̇.dataized(
+                  Φ̇.number(ξ.available).gt(ξ.to-read).if(ξ.to-read, ξ.available)
+                ).as-bytes,
+                φ ↦ ξ.available.eq(0).if(
+                  ξ.ρ.ρ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.bytes(⟦ Δ ⤍ -- ⟧)),
+                  ξ.ρ.ρ.input-block(
+                    ξ.ρ.data.slice(
+                      ξ.next, Φ̇.number(ξ.available).minus(Φ̇.number(ξ.next))
+                    ).as-bytes,
+                    ξ.ρ.data.slice(0, ξ.next).as-bytes
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/io/console.phi b/data/0.49.4/org/eolang/io/console.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/io/console.phi
@@ -0,0 +1,122 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        console() ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(ξ.windows-console, ξ.posix-console).platform,
+          posix-console() ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.posix(
+                      "read",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.stdin-fileno), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block() ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.posix(
+                          "write",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.posix.stdout-fileno
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          windows-console() ↦ ⟦
+            platform ↦ ξ,
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ Φ̇.dataized(
+                    Φ̇.sys.win32(
+                      "ReadFile",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.std-input-handle), ξ.size
+                      )
+                    ).output
+                  ).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧,
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block() ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple.empty,
+                        Φ̇.sys.win32(
+                          "WriteFile",
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(
+                                Φ̇.tuple.empty, Φ̇.sys.win32.std-output-handle
+                              ),
+                              ξ.buffer
+                            ),
+                            ξ.buffer.size
+                          )
+                        ).code
+                      ),
+                      ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/io/dead-input.phi b/data/0.49.4/org/eolang/io/dead-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/io/dead-input.phi
@@ -0,0 +1,22 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        dead-input() ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block,
+            input-block() ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ -- ⟧),
+              read(size) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.input-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/io/dead-output.phi b/data/0.49.4/org/eolang/io/dead-output.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/io/dead-output.phi
@@ -0,0 +1,22 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        dead-output() ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block,
+            output-block() ↦ ⟦
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.output-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/io/input-length.phi b/data/0.49.4/org/eolang/io/input-length.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/io/input-length.phi
@@ -0,0 +1,21 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        input-length(input) ↦ ⟦
+          chunk ↦ 4096,
+          φ ↦ ξ.rec-read(ξ.input, 0),
+          rec-read(input, length) ↦ ⟦
+            read-bytes ↦ ξ.input.read(ξ.ρ.chunk).read.ρ,
+            φ ↦ ξ.read-bytes.size.eq(0).if(
+              ξ.length, ξ.ρ.rec-read(ξ.read-bytes, ξ.length.plus(ξ.read-bytes.size))
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/io/malloc-as-output.phi b/data/0.49.4/org/eolang/io/malloc-as-output.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/io/malloc-as-output.phi
@@ -0,0 +1,30 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        malloc-as-output(allocated) ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block(0).write(ξ.buffer).self,
+            output-block(offset) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty, ξ.ρ.ρ.ρ.allocated.write(ξ.ρ.offset, ξ.buffer)
+                    ),
+                    ξ.ρ.ρ.output-block(ξ.ρ.offset.plus(ξ.buffer.size))
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/io/stdin.phi b/data/0.49.4/org/eolang/io/stdin.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/io/stdin.phi
@@ -0,0 +1,45 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        stdin() ↦ ⟦
+          φ ↦ ξ.all-lines,
+          all-lines() ↦ ⟦
+            φ ↦ ξ.rec-read(ξ.ρ.next-line, Φ̇.bytes(⟦ Δ ⤍ -- ⟧), Φ̇.true),
+            separator ↦ Φ̇.dataized(Φ̇.sys.line-separator).as-bytes,
+            rec-read(line, buffer, first) ↦ ⟦
+              φ ↦ ξ.line.length.eq(0).if(
+                Φ̇.string(ξ.buffer),
+                ξ.ρ.rec-read(
+                  ξ.ρ.ρ.next-line,
+                  ξ.first.if(
+                    ξ.buffer.concat(ξ.line), ξ.buffer.concat(ξ.ρ.separator).concat(ξ.line)
+                  ),
+                  Φ̇.false
+                )
+              )
+            ⟧
+          ⟧,
+          next-line() ↦ ⟦
+            first ↦ Φ̇.io.console.read(1).self,
+            φ ↦ ξ.first.as-bytes.size.eq(0).if(
+              "", ξ.rec-read(ξ.first, Φ̇.bytes(⟦ Δ ⤍ -- ⟧))
+            ),
+            rec-read(input, buffer) ↦ ⟦
+              char ↦ ξ.input.as-bytes,
+              next ↦ ξ.input.read(1).self,
+              φ ↦ ξ.char.eq(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).or(
+                ξ.char.eq("\r").and(ξ.next.as-bytes.eq("\n")).or(ξ.char.eq("\n"))
+              ).if(
+                Φ̇.string(ξ.buffer), ξ.ρ.rec-read(ξ.next, ξ.buffer.concat(ξ.char))
+              )
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/io/stdout.phi b/data/0.49.4/org/eolang/io/stdout.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/io/stdout.phi
@@ -0,0 +1,18 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        stdout(text) ↦ ⟦
+          φ ↦ Φ̇.seq(
+            Φ̇.tuple(
+              Φ̇.tuple(Φ̇.tuple.empty, Φ̇.io.console.write(ξ.text)), Φ̇.true
+            )
+          )
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/io/tee-input.phi b/data/0.49.4/org/eolang/io/tee-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/io/tee-input.phi
@@ -0,0 +1,34 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        tee-input(input, output) ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block(ξ.ρ.input, ξ.ρ.output, Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(
+              ξ.size
+            ).self,
+            input-block(input, output, buffer) ↦ ⟦
+              self ↦ ξ,
+              φ ↦ ξ.buffer,
+              read(size) ↦ ⟦
+                read-bytes ↦ ξ.ρ.input.read(ξ.size).read.ρ,
+                written-bytes ↦ ξ.ρ.output.write(ξ.read-bytes).write.ρ,
+                φ ↦ Φ̇.seq(
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.written-bytes),
+                    ξ.ρ.ρ.input-block(
+                      ξ.read-bytes, ξ.written-bytes, ξ.read-bytes.as-bytes
+                    )
+                  )
+                ).self
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/malloc.phi b/data/0.49.4/org/eolang/malloc.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/malloc.phi
@@ -0,0 +1,55 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      malloc() ↦ ⟦
+        empty(scope) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.malloc.of(0, ξ.scope)
+        ⟧,
+        for(object, scope) ↦ ⟦
+          bts ↦ Φ̇.dataized(ξ.object).as-bytes,
+          φ ↦ ξ.ρ.ρ.malloc.of(ξ.bts.size, ξ.auto-named-attr-at-96-9),
+          auto-named-attr-at-96-9(m) ↦ ⟦
+            φ ↦ Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.m.write(0, ξ.ρ.bts)), ξ.ρ.scope(ξ.m)
+              )
+            )
+          ⟧
+        ⟧,
+        of(size, scope) ↦ ⟦
+          φ() ↦ ⟦
+            λ ⤍ Lorg_eolang_malloc_of_φ
+          ⟧,
+          allocated(id) ↦ ⟦
+            φ ↦ ξ.get,
+            get ↦ ξ.read(0, ξ.size),
+            size() ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_size
+            ⟧,
+            resized(new-size) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_resized
+            ⟧,
+            copy(source, target, length) ↦ ⟦
+              φ ↦ ξ.ρ.write(ξ.target, ξ.ρ.read(ξ.source, ξ.length))
+            ⟧,
+            read(offset, length) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_read
+            ⟧,
+            write(offset, data) ↦ ⟦
+              λ ⤍ Lorg_eolang_malloc_of_allocated_write
+            ⟧,
+            put(object) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.write(0, ξ.object)), ξ.ρ.get
+                )
+              )
+            ⟧
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/math/angle.phi b/data/0.49.4/org/eolang/math/angle.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/math/angle.phi
@@ -0,0 +1,30 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        angle(value) ↦ ⟦
+          φ ↦ ξ.value,
+          in-degrees ↦ ξ.ρ.angle(ξ.ρ.times(180).div(Φ̇.math.pi)),
+          in-radians ↦ ξ.ρ.angle(ξ.times(Φ̇.math.pi).div(180)),
+          sin() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_sin
+          ⟧,
+          cos() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_angle_cos
+          ⟧,
+          tan() ↦ ⟦
+            cosine ↦ Φ̇.dataized(ξ.ρ.cos).as-bytes,
+            φ ↦ ξ.cosine.eq(0).if(Φ̇.nan, ξ.ρ.sin.div(ξ.cosine))
+          ⟧,
+          ctan() ↦ ⟦
+            sine ↦ Φ̇.dataized(ξ.ρ.sin).as-bytes,
+            φ ↦ ξ.sine.eq(0).if(Φ̇.nan, ξ.ρ.cos.div(ξ.sine))
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/math/e.phi b/data/0.49.4/org/eolang/math/e.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/math/e.phi
@@ -0,0 +1,12 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        e ↦ 2.718281828459045,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/math/integral.phi b/data/0.49.4/org/eolang/math/integral.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/math/integral.phi
@@ -0,0 +1,66 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        integral(fun, a, b, n) ↦ ⟦
+          subsection(a, b) ↦ ⟦
+            φ ↦ ξ.b.minus(ξ.a).div(6).times(
+              ξ.ρ.fun(ξ.a).plus(
+                4.times(ξ.ρ.fun(0.5.times(ξ.a.plus(ξ.b)))).plus(ξ.ρ.fun(ξ.b))
+              )
+            )
+          ⟧,
+          φ ↦ Φ̇.malloc.of(8, ξ.auto-named-attr-at-50-11).as-number,
+          auto-named-attr-at-50-11(sum) ↦ ⟦
+            φ ↦ Φ̇.malloc.for(ξ.ρ.a, ξ.auto-named-attr-at-53-16),
+            auto-named-attr-at-53-16(left) ↦ ⟦
+              right ↦ ξ.ρ.ρ.b,
+              step ↦ ξ.right.minus(ξ.left).div(ξ.ρ.ρ.n).as-number,
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple.empty,
+                    Φ̇.while(
+                      ξ.auto-named-attr-at-59-21,
+                      ⟦
+                        φ ↦ Φ̇.true,
+                        i ↦ ∅
+                      ⟧
+                    )
+                  ),
+                  ξ.ρ.sum
+                )
+              ),
+              auto-named-attr-at-59-21(i) ↦ ⟦
+                φ ↦ ξ.ρ.left.as-number.plus(ξ.ρ.step).lt(ξ.ρ.right).if(
+                  Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple.empty,
+                          ξ.ρ.ρ.sum.put(
+                            ξ.ρ.ρ.sum.as-number.plus(
+                              ξ.ρ.ρ.ρ.subsection(
+                                ξ.ρ.left.as-number, ξ.ρ.left.as-number.plus(ξ.ρ.step)
+                              )
+                            )
+                          )
+                        ),
+                        ξ.ρ.left.put(ξ.ρ.left.as-number.plus(ξ.ρ.step))
+                      ),
+                      Φ̇.true
+                    )
+                  ),
+                  Φ̇.false
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/math/numbers.phi b/data/0.49.4/org/eolang/math/numbers.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/math/numbers.phi
@@ -0,0 +1,42 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        numbers(sequence) ↦ ⟦
+          φ ↦ ξ.sequence,
+          max() ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get max number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.negative-infinity,
+                ⟦
+                  max ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.item.as-number.gt(ξ.max).if(ξ.item, ξ.max)
+                ⟧
+              )
+            )
+          ⟧,
+          min() ↦ ⟦
+            lst ↦ Φ̇.structs.list(ξ.ρ.sequence),
+            φ ↦ ξ.lst.is-empty.if(
+              Φ̇.error("Can't get min number from empty sequence"),
+              ξ.lst.reduced(
+                Φ̇.positive-infinity,
+                ⟦
+                  min ↦ ∅,
+                  item ↦ ∅,
+                  φ ↦ ξ.min.gt(ξ.item.as-number).if(ξ.item, ξ.min)
+                ⟧
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/math/pi.phi b/data/0.49.4/org/eolang/math/pi.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/math/pi.phi
@@ -0,0 +1,12 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        pi ↦ 3.141592653589793,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/math/random.phi b/data/0.49.4/org/eolang/math/random.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/math/random.phi
@@ -0,0 +1,53 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        random(seed) ↦ ⟦
+          fixed ↦ ξ,
+          φ ↦ ξ.seed.as-number.div(
+            Φ̇.bytes(⟦ Δ ⤍ 00-20-00-00-00-00-00-00 ⟧).as-i64.as-number
+          ),
+          next ↦ ξ.ρ.random(
+            ξ.seed.times(25214903917).plus(11).as-i64.and(
+              Φ̇.bytes(⟦ Δ ⤍ 00-0F-FF-FF-FF-FF-FF-FF ⟧)
+            ).as-i64.as-number
+          ).fixed,
+          pseudo() ↦ ⟦
+            const-1 ↦ 35,
+            const-2 ↦ 53,
+            const-3 ↦ 17,
+            one ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-01 ⟧),
+            φ ↦ ξ.ρ.ρ.random(ξ.time-seed),
+            time-seed ↦ ξ.time-bytes.left(ξ.const-1).and(
+              ξ.one.left(ξ.const-2).as-i64.minus(ξ.one).as-bytes
+            ).as-i64.plus(
+              ξ.time-bytes.left(ξ.const-3).and(
+                ξ.one.left(ξ.const-1).as-i64.minus(ξ.one).as-bytes
+              ).as-i64.plus(
+                ξ.time-bytes.and(
+                  ξ.one.left(ξ.const-3).as-i64.minus(ξ.one).as-bytes
+                ).as-i64
+              )
+            ).as-number,
+            time-bytes ↦ Φ̇.sys.os.is-windows.if(
+              Φ̇.sys.win32(
+                "GetSystemTime", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.system-time)
+              ).milliseconds,
+              ⟦
+                timeval ↦ Φ̇.sys.posix(
+                  "gettimeofday", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.timeval)
+                ).output,
+                φ ↦ ξ.timeval.tv-sec.times(1000).plus(
+                  ξ.timeval.tv-usec.as-i64.div(1000.as-i64).as-number
+                )
+              ⟧
+            ).as-i64.as-bytes
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/math/real.phi b/data/0.49.4/org/eolang/math/real.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/math/real.phi
@@ -0,0 +1,49 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      math() ↦ ⟦
+        real(num) ↦ ⟦
+          φ ↦ ξ.num,
+          exp ↦ Φ̇.math.real(Φ̇.math.e).pow(ξ.num),
+          mod(x) ↦ ⟦
+            dividend ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            divisor ↦ Φ̇.number(ξ.x.as-bytes),
+            φ ↦ ξ.divisor.eq(0).if(
+              Φ̇.error("Can't calculate mod by zero"),
+              ξ.dividend.gt(0).if(ξ.abs-mod, ξ.abs-mod.neg)
+            ),
+            abs-mod() ↦ ⟦
+              dividend-abs ↦ Φ̇.math.real(ξ.ρ.dividend).abs,
+              divisor-abs ↦ Φ̇.math.real(ξ.ρ.divisor).abs,
+              φ ↦ ξ.dividend-abs.minus(
+                ξ.divisor-abs.times(ξ.dividend-abs.div(ξ.divisor-abs).floor)
+              )
+            ⟧
+          ⟧,
+          abs() ↦ ⟦
+            value ↦ Φ̇.number(ξ.ρ.num.as-bytes),
+            φ ↦ ξ.value.gte(0).if(ξ.value, ξ.value.neg)
+          ⟧,
+          pow(x) ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_pow
+          ⟧,
+          sqrt() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_sqrt
+          ⟧,
+          ln() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_ln
+          ⟧,
+          acos() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_acos
+          ⟧,
+          asin() ↦ ⟦
+            λ ⤍ Lorg_eolang_math_real_asin
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/nan.phi b/data/0.49.4/org/eolang/nan.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/nan.phi
@@ -0,0 +1,44 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      nan() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F8-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ ξ,
+        is-nan ↦ Φ̇.true,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert NaN to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        times(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        plus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        div(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/negative-infinity.phi b/data/0.49.4/org/eolang/negative-infinity.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/negative-infinity.phi
@@ -0,0 +1,61 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      negative-infinity() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ FF-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.positive-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert negative infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.positive-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.positive-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.positive-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/net/socket.phi b/data/0.49.4/org/eolang/net/socket.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/net/socket.phi
@@ -0,0 +1,535 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      net() ↦ ⟦
+        socket(address, port) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            ξ.win-socket(ξ.address, ξ.port), ξ.posix-socket(ξ.address, ξ.port)
+          ),
+          htons(port) ↦ ⟦
+            bts ↦ ξ.port.as-i16.as-bytes,
+            φ ↦ ξ.bts.and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧)).left(8).or(
+              ξ.bts.right(8).and(Φ̇.bytes(⟦ Δ ⤍ FF- ⟧))
+            ).as-i16
+          ⟧,
+          as-input(recv) ↦ ⟦
+            read(size) ↦ ⟦
+              φ ↦ ξ.input-block(Φ̇.bytes(⟦ Δ ⤍ -- ⟧)).read(ξ.size).self,
+              input-block(buffer) ↦ ⟦
+                self ↦ ξ,
+                φ ↦ ξ.buffer,
+                read(size) ↦ ⟦
+                  read-bytes ↦ ξ.ρ.ρ.ρ.recv(ξ.size).as-bytes,
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.read-bytes), ξ.ρ.ρ.input-block(ξ.read-bytes)
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          as-output(send) ↦ ⟦
+            write(buffer) ↦ ⟦
+              φ ↦ ξ.output-block.write(ξ.buffer).self,
+              output-block() ↦ ⟦
+                self ↦ ξ,
+                φ ↦ Φ̇.true,
+                write(buffer) ↦ ⟦
+                  φ ↦ Φ̇.seq(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.ρ.ρ.send(ξ.buffer)), ξ.ρ.ρ.output-block
+                    )
+                  ).self
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          posix-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.posix(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.posix.af-inet), Φ̇.sys.posix.sock-stream
+                ),
+                Φ̇.sys.posix.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.posix(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.posix.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' posix syscall, reason: '%s'",
+                  Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.strerror.code)
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.posix.sockaddr-in(
+              Φ̇.sys.posix.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.posix(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.posix(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', reason: %s",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            strerror() ↦ ⟦
+              φ ↦ Φ̇.sys.posix(
+                "strerror",
+                Φ̇.tuple(
+                  Φ̇.tuple.empty, Φ̇.sys.posix("errno", Φ̇.tuple.empty).code
+                )
+              )
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.posix("close", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)).code,
+              φ ↦ ξ.closed.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a posix socket '%d', reason: '%s'",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.strerror.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              φ ↦ ξ.ρ.sd.eq(-1).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't create a posix socket, reason: '%s'",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.strerror.code)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.scope,
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.ρ.closed-socket(ξ.ρ.sd)
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-276-10),
+              auto-named-attr-at-276-10() ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.posix(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on posix socket '%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-300-10),
+              auto-named-attr-at-300-10() ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.posix(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.posix(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind posix socket '%d' to '%s:%d', reason: '%s'",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.strerror.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', reason: '%s'",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.strerror.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-325-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-325-22() ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.posix(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on posix socket '%d', reason: %s",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.strerror.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧,
+          win-socket(address, port) ↦ ⟦
+            sd ↦ Φ̇.sys.win32(
+              "socket",
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.af-inet), Φ̇.sys.win32.sock-stream
+                ),
+                Φ̇.sys.win32.ipproto-tcp
+              )
+            ).code,
+            inet-addr ↦ Φ̇.sys.win32(
+              "inet_addr", Φ̇.tuple(Φ̇.tuple.empty, ξ.address)
+            ).code,
+            inet-addr-as-int ↦ ξ.inet-addr.eq(Φ̇.sys.win32.inaddr-none).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Couldn't convert an IPv4 address '%s' into a 32-bit integer via 'inet_addr' win32 function call, WSA error code: %d",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.address), ξ.last-error.code
+                  )
+                )
+              ),
+              ξ.inet-addr.as-i32
+            ),
+            sockaddr ↦ Φ̇.sys.win32.sockaddr-in(
+              Φ̇.sys.win32.af-inet.as-i16, ξ.ρ.htons(ξ.port), ξ.inet-addr-as-int
+            ),
+            scoped-socket(sockfd) ↦ ⟦
+              as-input ↦ ξ.ρ.ρ.ρ.as-input(ξ.recv),
+              as-output ↦ ξ.ρ.ρ.ρ.as-output(ξ.send),
+              send(buffer) ↦ ⟦
+                buff ↦ Φ̇.dataized(ξ.buffer).as-bytes,
+                sent ↦ Φ̇.sys.win32(
+                  "send",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.buff), ξ.buff.size
+                    ),
+                    0
+                  )
+                ).code,
+                φ ↦ ξ.sent.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to send message through the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.sent
+                )
+              ⟧,
+              recv(size) ↦ ⟦
+                received ↦ Φ̇.sys.win32(
+                  "recv",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.size), 0
+                  )
+                ).called,
+                φ ↦ ξ.received.code.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Failed to receive data from the socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.sockfd), ξ.ρ.ρ.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.received.output
+                )
+              ⟧
+            ⟧,
+            last-error() ↦ ⟦
+              φ ↦ Φ̇.sys.win32("WSAGetLastError", Φ̇.tuple.empty)
+            ⟧,
+            closed-socket(sockfd) ↦ ⟦
+              closed ↦ Φ̇.sys.win32(
+                "closesocket", Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd)
+              ).code,
+              φ ↦ ξ.closed.eq(Φ̇.sys.win32.socket-error).if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't close a win32 socket '%d', WSA error code: %d",
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sockfd), ξ.ρ.last-error.code
+                    )
+                  )
+                ),
+                Φ̇.true
+              )
+            ⟧,
+            safe-socket(scope) ↦ ⟦
+              started-up ↦ Φ̇.sys.win32(
+                "WSAStartup", Φ̇.tuple(Φ̇.tuple.empty, Φ̇.sys.win32.winsock-version-2-2)
+              ).code,
+              cleaned-up ↦ Φ̇.sys.win32("WSACleanup", Φ̇.tuple.empty).code,
+              φ ↦ ξ.started-up.eq(0).not.if(
+                Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Couldn't initialize Winsock via 'WSAStartup' call, WSA error code: %d",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.started-up)
+                  )
+                ),
+                Φ̇.try(
+                  ξ.ρ.sd.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Couldn't create a win32 socket, WSA error code: %d",
+                        Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.last-error.code)
+                      )
+                    ),
+                    Φ̇.try(
+                      ξ.scope,
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.ρ.closed-socket(ξ.ρ.sd)
+                    )
+                  ),
+                  ⟦
+                    φ ↦ Φ̇.error(ξ.ex),
+                    ex ↦ ∅
+                  ⟧,
+                  ξ.cleaned-up.eq(Φ̇.sys.win32.socket-error).if(
+                    Φ̇.error("Couldn't cleanup Winsock resources"), Φ̇.true
+                  )
+                )
+              )
+            ⟧,
+            connect(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-485-10),
+              auto-named-attr-at-485-10() ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                connected ↦ Φ̇.sys.win32(
+                  "connect",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                φ ↦ ξ.connected.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't connect to '%s:%d' on win32 socket '%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                          ),
+                          ξ.sock.sd
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  Φ̇.dataized(ξ.ρ.scope(ξ.sock.scoped-socket(ξ.sock.sd))).as-bytes
+                )
+              ⟧
+            ⟧,
+            listen(scope) ↦ ⟦
+              φ ↦ ξ.ρ.safe-socket(ξ.auto-named-attr-at-509-10),
+              auto-named-attr-at-509-10() ↦ ⟦
+                sock ↦ ξ.ρ.ρ,
+                bound ↦ Φ̇.sys.win32(
+                  "bind",
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                    ),
+                    ξ.sock.sockaddr.size
+                  )
+                ).code,
+                listened ↦ Φ̇.sys.win32(
+                  "listen", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), 2048)
+                ).code,
+                φ ↦ ξ.bound.eq(-1).if(
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Couldn't bind win32 socket '%d' to '%s:%d', WSA error code: %d",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.address
+                          ),
+                          ξ.sock.port
+                        ),
+                        ξ.sock.last-error.code
+                      )
+                    )
+                  ),
+                  ξ.listened.eq(-1).if(
+                    Φ̇.error(
+                      Φ̇.txt.sprintf(
+                        "Failed to listen for connections to '%s:%d' on socket '%d', WSA error code: %d",
+                        Φ̇.tuple(
+                          Φ̇.tuple(
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.address), ξ.sock.port
+                            ),
+                            ξ.sock.sd
+                          ),
+                          ξ.sock.last-error.code
+                        )
+                      )
+                    ),
+                    Φ̇.dataized(ξ.ρ.scope(ξ.auto-named-attr-at-534-22)).as-bytes
+                  )
+                ),
+                auto-named-attr-at-534-22() ↦ ⟦
+                  φ ↦ ξ.ρ.sock.scoped-socket(ξ.ρ.sock.sd),
+                  accept(scope) ↦ ⟦
+                    sock ↦ ξ.ρ.ρ.sock,
+                    client-sockfd ↦ Φ̇.sys.win32(
+                      "accept",
+                      Φ̇.tuple(
+                        Φ̇.tuple(
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.sockaddr
+                        ),
+                        ξ.sock.sockaddr.size
+                      )
+                    ).code,
+                    φ ↦ Φ̇.try(
+                      ξ.client-sockfd.eq(-1).if(
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Failed to accept a connection on win32 socket '%d', WSA error code: %d",
+                            Φ̇.tuple(
+                              Φ̇.tuple(Φ̇.tuple.empty, ξ.sock.sd), ξ.sock.last-error.code
+                            )
+                          )
+                        ),
+                        Φ̇.dataized(
+                          ξ.scope(ξ.sock.scoped-socket(ξ.client-sockfd))
+                        ).as-bytes
+                      ),
+                      ⟦
+                        φ ↦ Φ̇.error(ξ.ex),
+                        ex ↦ ∅
+                      ⟧,
+                      ξ.sock.closed-socket(ξ.client-sockfd)
+                    )
+                  ⟧
+                ⟧
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/number.phi b/data/0.49.4/org/eolang/number.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/number.phi
@@ -0,0 +1,74 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      number(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-number ↦ ξ,
+        neg ↦ ξ.times(-1),
+        as-i32 ↦ ξ.as-i64.as-i32,
+        as-i16 ↦ ξ.as-i32.as-i16,
+        is-nan ↦ ξ.as-bytes.eq(Φ̇.nan.as-bytes),
+        as-i64() ↦ ⟦
+          λ ⤍ Lorg_eolang_number_as_i64
+        ⟧,
+        eq(x) ↦ ⟦
+          x-as-bytes ↦ Φ̇.dataized(ξ.x).as-bytes,
+          self-as-bytes ↦ ξ.ρ.as-bytes,
+          pos-zero-as-bytes ↦ 0.as-bytes,
+          neg-zero-as-bytes ↦ -0.as-bytes,
+          φ ↦ ξ.ρ.is-nan.or(Φ̇.number(ξ.x-as-bytes).is-nan).if(
+            Φ̇.false,
+            ξ.x-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+              ξ.x-as-bytes.eq(ξ.neg-zero-as-bytes)
+            ).and(
+              ξ.self-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+                ξ.self-as-bytes.eq(ξ.neg-zero-as-bytes)
+              )
+            ).or(ξ.self-as-bytes.eq(ξ.x-as-bytes))
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.gt(ξ.ρ.minus(Φ̇.number(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(Φ̇.number(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_div
+        ⟧,
+        floor() ↦ ⟦
+          λ ⤍ Lorg_eolang_number_floor
+        ⟧,
+        is-integer() ↦ ⟦
+          φ ↦ ξ.ρ.is-finite.and(ξ.ρ.eq(ξ.ρ.floor))
+        ⟧,
+        is-finite() ↦ ⟦
+          φ ↦ ξ.ρ.is-nan.not.and(
+            ξ.ρ.eq(Φ̇.positive-infinity).or(ξ.ρ.eq(Φ̇.negative-infinity)).not
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/positive-infinity.phi b/data/0.49.4/org/eolang/positive-infinity.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/positive-infinity.phi
@@ -0,0 +1,61 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      positive-infinity() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.negative-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert positive infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        gt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.negative-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.negative-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.negative-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/seq.phi b/data/0.49.4/org/eolang/seq.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/seq.phi
@@ -0,0 +1,17 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      seq(steps) ↦ ⟦
+        φ ↦ ξ.steps.length.eq(0).if(Φ̇.true, ξ.loop(0)),
+        max-len ↦ Φ̇.dataized(ξ.steps.length.minus(1)).as-bytes,
+        loop(index) ↦ ⟦
+          φ ↦ ξ.index.lt(ξ.ρ.max-len).and(
+            Φ̇.dataized(ξ.ρ.steps.at(ξ.index)).as-bool.or(Φ̇.true)
+          ).if(ξ.ρ.loop(ξ.index.plus(1)), ξ.ρ.steps.at(ξ.index))
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/string.phi b/data/0.49.4/org/eolang/string.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/string.phi
@@ -0,0 +1,155 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      string(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        length() ↦ ⟦
+          size ↦ ξ.ρ.as-bytes.size,
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          φ ↦ ξ.size.eq(0).if(0, ξ.rec-length(0, 0)),
+          increase-length(index, char-size, len) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-length(ξ.index.plus(ξ.char-size), ξ.len.plus(1))
+            )
+          ⟧,
+          rec-length(index, accum) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.accum,
+              ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                ξ.ρ.increase-length(ξ.index, 1, ξ.accum),
+                ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                  ξ.ρ.increase-length(ξ.index, 2, ξ.accum),
+                  ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                    ξ.ρ.increase-length(ξ.index, 3, ξ.accum),
+                    ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                      ξ.ρ.increase-length(ξ.index, 4, ξ.accum),
+                      Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Unknown byte format (%x), can't recognize character",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        slice(start, len) ↦ ⟦
+          start-bytes ↦ Φ̇.dataized(ξ.start).as-bytes,
+          len-bytes ↦ Φ̇.dataized(ξ.len).as-bytes,
+          num-start ↦ Φ̇.number(ξ.start-bytes),
+          num-len ↦ Φ̇.number(ξ.len-bytes),
+          size ↦ ξ.ρ.as-bytes.size,
+          end ↦ ξ.num-start.plus(ξ.num-len),
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          bts-start ↦ Φ̇.dataized(
+            ξ.rec-index(
+              0,
+              0,
+              ξ.num-start,
+              Φ̇.txt.sprintf(
+                "Start index (%d) is out of string bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            )
+          ).as-bytes,
+          bts-length ↦ ξ.rec-index(
+            Φ̇.number(ξ.bts-start),
+            0,
+            ξ.num-len,
+            Φ̇.txt.sprintf(
+              "Start index + length to slice (%d) is out of string bounds",
+              Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start.plus(ξ.num-len))
+            )
+          ).minus(ξ.bts-start),
+          φ ↦ ξ.num-start.lt(0).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Start index must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            ),
+            ξ.num-len.lt(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Length to slice must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-len)
+                )
+              ),
+              ξ.num-len.eq(0).if(
+                "", Φ̇.string(ξ.ρ.as-bytes.slice(ξ.bts-start, ξ.bts-length))
+              )
+            )
+          ),
+          increase(index, char-size, accum, result, cause) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-index(
+                ξ.index.plus(ξ.char-size), ξ.accum.plus(1), ξ.result, ξ.cause
+              )
+            )
+          ⟧,
+          rec-index(index, accum, result, cause) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.accum.eq(ξ.result).if(
+              ξ.index,
+              ξ.index.eq(ξ.ρ.size).if(
+                Φ̇.error(ξ.cause),
+                ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                  ξ.ρ.increase(ξ.index, 1, ξ.accum, ξ.result, ξ.cause),
+                  ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                    ξ.ρ.increase(ξ.index, 2, ξ.accum, ξ.result, ξ.cause),
+                    ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                      ξ.ρ.increase(ξ.index, 3, ξ.accum, ξ.result, ξ.cause),
+                      ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                        ξ.ρ.increase(ξ.index, 4, ξ.accum, ξ.result, ξ.cause),
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Unknown byte format (%x), can't recognize character",
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                          )
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/structs/bytes-as-array.phi b/data/0.49.4/org/eolang/structs/bytes-as-array.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/structs/bytes-as-array.phi
@@ -0,0 +1,23 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        bytes-as-array(bts) ↦ ⟦
+          bytes-size ↦ Φ̇.dataized(ξ.bts.size).as-bytes,
+          φ ↦ ξ.slice-byte(Φ̇.tuple.empty, 0),
+          slice-byte(tup, index) ↦ ⟦
+            φ ↦ ξ.index.lt(ξ.ρ.bytes-size).if(
+              ξ.ρ.slice-byte(
+                ξ.tup.with(ξ.ρ.bts.slice(ξ.index, 1)), ξ.index.plus(1)
+              ),
+              ξ.tup
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/structs/hash-code-of.phi b/data/0.49.4/org/eolang/structs/hash-code-of.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/structs/hash-code-of.phi
@@ -0,0 +1,30 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        hash-code-of(input) ↦ ⟦
+          input-as-bytes ↦ Φ̇.dataized(ξ.input.as-bytes).as-bytes,
+          size ↦ Φ̇.dataized(ξ.input-as-bytes.size).as-bytes,
+          magic-number ↦ 31.as-i64,
+          φ ↦ ξ.rec-hash-code(0, 0),
+          rec-hash-code(acc, index) ↦ ⟦
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.acc.as-number,
+              ξ.ρ.rec-hash-code(
+                ξ.ρ.magic-number.times(ξ.acc).plus(
+                  Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(
+                    ξ.ρ.input-as-bytes.slice(ξ.index, 1)
+                  ).as-i64
+                ),
+                ξ.index.plus(1)
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/structs/list.phi b/data/0.49.4/org/eolang/structs/list.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/structs/list.phi
@@ -0,0 +1,194 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        list(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-empty() ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.origin.length)
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.ρ.origin.with(ξ.x))
+          ⟧,
+          withi(index, item) ↦ ⟦
+            φ ↦ ξ.ρ.head(ξ.index).with(ξ.item).concat(
+              ξ.ρ.tail(ξ.ρ.origin.length.minus(ξ.index))
+            )
+          ⟧,
+          reducedi(start, func) ↦ ⟦
+            origin-len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.origin-len).if(ξ.start, ξ.rec-reduced(ξ.start, 0.as-bytes)),
+            rec-reduced(accum, index) ↦ ⟦
+              idx-as-number ↦ ξ.index.as-number,
+              next-index ↦ Φ̇.dataized(1.plus(ξ.idx-as-number)).as-bytes,
+              φ ↦ ξ.next-index.eq(ξ.ρ.origin-len).if(
+                ξ.accumulated, ξ.ρ.rec-reduced(ξ.accumulated, ξ.next-index)
+              ),
+              accumulated ↦ ξ.ρ.func(
+                ξ.accum, ξ.ρ.ρ.origin.at(ξ.idx-as-number), ξ.idx-as-number
+              )
+            ⟧
+          ⟧,
+          reduced(start, func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(ξ.start, ξ.auto-named-attr-at-83-42),
+            auto-named-attr-at-83-42(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.accum, ξ.item)
+            ⟧
+          ⟧,
+          mappedi(func) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-93-24)
+            ),
+            auto-named-attr-at-93-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.with(ξ.ρ.func(ξ.item, ξ.idx))
+            ⟧
+          ⟧,
+          mapped(func) ↦ ⟦
+            φ ↦ ξ.ρ.mappedi(ξ.auto-named-attr-at-103-30),
+            auto-named-attr-at-103-30(item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          eachi(func) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-113-22),
+            auto-named-attr-at-113-22(acc, item, index) ↦ ⟦
+              φ ↦ Φ̇.seq(
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, ξ.acc), ξ.ρ.func(ξ.item, ξ.index)
+                )
+              )
+            ⟧
+          ⟧,
+          each(func) ↦ ⟦
+            φ ↦ ξ.ρ.eachi(ξ.auto-named-attr-at-124-32),
+            auto-named-attr-at-124-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          withouti(i) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-131-24)
+            ),
+            auto-named-attr-at-131-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.ρ.i.eq(ξ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          without(element) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(
+              ξ.ρ.reduced(Φ̇.tuple.empty, ξ.auto-named-attr-at-142-20)
+            ),
+            auto-named-attr-at-142-20(accum, item) ↦ ⟦
+              φ ↦ ξ.ρ.element.eq(ξ.item).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          eq(other) ↦ ⟦
+            φ ↦ ξ.ρ.origin.length.eq(ξ.other.length).and(
+              ξ.ρ.reducedi(Φ̇.true, ξ.auto-named-attr-at-157-24)
+            ),
+            auto-named-attr-at-157-24(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.accum.and(ξ.item.eq(ξ.ρ.other.at(ξ.idx)))
+            ⟧
+          ⟧,
+          concat(passed) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.list(ξ.passed).reduced(
+              ξ.ρ,
+              ⟦
+                φ ↦ ξ.accum.with(ξ.item),
+                accum ↦ ∅,
+                item ↦ ∅
+              ⟧
+            )
+          ⟧,
+          index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-177-24),
+            auto-named-attr-at-177-24(accum, item, index) ↦ ⟦
+              φ ↦ -1.eq(ξ.accum).and(ξ.item.eq(ξ.ρ.wanted)).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          last-index-of(wanted) ↦ ⟦
+            φ ↦ ξ.ρ.reducedi(-1, ξ.auto-named-attr-at-190-24),
+            auto-named-attr-at-190-24(accum, item, index) ↦ ⟦
+              φ ↦ ξ.item.eq(ξ.ρ.wanted).if(ξ.index, ξ.accum)
+            ⟧
+          ⟧,
+          contains(element) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.element)).not
+          ⟧,
+          sorted() ↦ ⟦
+            φ ↦ ξ.ρ
+          ⟧,
+          filteredi(func) ↦ ⟦
+            origin-length ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ ξ.ρ.ρ.list(ξ.rec-filtered(0.as-bytes, Φ̇.tuple.empty)),
+            rec-filtered(idx-as-bytes, accum) ↦ ⟦
+              original ↦ ξ.ρ.ρ.origin,
+              index ↦ ξ.idx-as-bytes.as-number,
+              item ↦ ξ.ρ.ρ.origin.at(ξ.index),
+              φ ↦ ξ.idx-as-bytes.eq(ξ.ρ.origin-length).if(
+                ξ.accum,
+                ξ.ρ.rec-filtered(
+                  1.plus(ξ.index).as-bytes,
+                  ξ.ρ.func(ξ.item, ξ.index).if(ξ.accum.with(ξ.item), ξ.accum)
+                )
+              )
+            ⟧
+          ⟧,
+          filtered(func) ↦ ⟦
+            φ ↦ ξ.ρ.filteredi(ξ.auto-named-attr-at-243-32),
+            auto-named-attr-at-243-32(item, index) ↦ ⟦
+              φ ↦ ξ.ρ.func(ξ.item)
+            ⟧
+          ⟧,
+          head(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            φ ↦ Φ̇.switch(
+              Φ̇.tuple(
+                Φ̇.tuple(
+                  Φ̇.tuple(
+                    Φ̇.tuple(
+                      Φ̇.tuple.empty,
+                      Φ̇.tuple(
+                        Φ̇.tuple(Φ̇.tuple.empty, 0.eq(ξ.idx)), ξ.ρ.ρ.list(Φ̇.tuple.empty)
+                      )
+                    ),
+                    Φ̇.tuple(
+                      Φ̇.tuple(Φ̇.tuple.empty, 0.gt(ξ.idx)), ξ.ρ.tail(ξ.index.as-number.neg)
+                    )
+                  ),
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin.length.lte(ξ.idx)), ξ.ρ
+                  )
+                ),
+                Φ̇.tuple(
+                  Φ̇.tuple(Φ̇.tuple.empty, Φ̇.true),
+                  ξ.ρ.ρ.list(
+                    ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-264-32)
+                  )
+                )
+              )
+            ),
+            auto-named-attr-at-264-32(accum, item, index) ↦ ⟦
+              φ ↦ ξ.index.gte(ξ.ρ.idx).if(ξ.accum, ξ.accum.with(ξ.item))
+            ⟧
+          ⟧,
+          tail(index) ↦ ⟦
+            idx ↦ Φ̇.dataized(ξ.index).as-bytes,
+            start ↦ Φ̇.dataized(ξ.ρ.origin.length.minus(ξ.idx.as-number)).as-bytes,
+            φ ↦ 0.gt(ξ.start).if(
+              ξ.ρ,
+              ξ.ρ.ρ.list(
+                ξ.ρ.reducedi(Φ̇.tuple.empty, ξ.auto-named-attr-at-280-26)
+              )
+            ),
+            auto-named-attr-at-280-26(accum, item, idx) ↦ ⟦
+              φ ↦ ξ.idx.gte(ξ.ρ.start).if(ξ.accum.with(ξ.item), ξ.accum)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/structs/map.phi b/data/0.49.4/org/eolang/structs/map.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/structs/map.phi
@@ -0,0 +1,122 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        map(pairs) ↦ ⟦
+          φ ↦ ξ.auto-named-attr-at-37-6.initialized,
+          entry(key, value) ↦ ⟦⟧,
+          initialized(entries) ↦ ⟦
+            initialized ↦ ξ,
+            size ↦ ξ.entries.length,
+            keys() ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.key,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            values() ↦ ⟦
+              φ ↦ Φ̇.structs.list(ξ.ρ.entries).mapped(
+                ⟦
+                  φ ↦ ξ.entry.value,
+                  entry ↦ ∅
+                ⟧
+              )
+            ⟧,
+            has(key) ↦ ⟦
+              φ ↦ ξ.ρ.found(ξ.key).exists
+            ⟧,
+            found(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.size.eq(0).if(ξ.not-found, ξ.rec-key-search(ξ.not-found, 0)),
+              rec-key-search(found, index) ↦ ⟦
+                entry ↦ ξ.ρ.ρ.entries.at(ξ.index),
+                φ ↦ ξ.found.exists.or(ξ.ρ.ρ.size.eq(ξ.index)).if(
+                  ξ.found,
+                  ξ.ρ.rec-key-search(
+                    ξ.ρ.hash.eq(ξ.entry.hash).if(
+                      ξ.auto-named-attr-at-133-54, ξ.found
+                    ),
+                    ξ.index.plus(1)
+                  )
+                ),
+                auto-named-attr-at-133-54() ↦ ⟦
+                  exists ↦ Φ̇.true,
+                  get ↦ ξ.ρ.entry.value
+                ⟧
+              ⟧,
+              not-found() ↦ ⟦
+                exists ↦ Φ̇.false,
+                get ↦ Φ̇.error(
+                  Φ̇.txt.sprintf(
+                    "Object by hash code %d from given key does not exists",
+                    Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.hash)
+                  )
+                )
+              ⟧
+            ⟧,
+            with(key, value) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-153-50
+                ).origin.with(ξ.auto-named-attr-at-154-12)
+              ),
+              auto-named-attr-at-153-50(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧,
+              auto-named-attr-at-154-12() ↦ ⟦
+                key ↦ ξ.ρ.key,
+                value ↦ ξ.ρ.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧,
+            without(key) ↦ ⟦
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.key)).as-bytes,
+              φ ↦ ξ.ρ.ρ.ρ.map.initialized(
+                Φ̇.structs.list(ξ.ρ.entries).filtered(
+                  ξ.auto-named-attr-at-167-48
+                ).origin
+              ),
+              auto-named-attr-at-167-48(entry) ↦ ⟦
+                φ ↦ ξ.ρ.hash.eq(ξ.entry.hash).not
+              ⟧
+            ⟧
+          ⟧,
+          auto-named-attr-at-37-6() ↦ ⟦
+            pairs-size ↦ Φ̇.dataized(ξ.ρ.pairs.length).as-bytes,
+            φ ↦ ξ.ρ.initialized(
+              ξ.pairs-size.eq(0).if(
+                Φ̇.tuple.empty,
+                ξ.rec-rebuild(Φ̇.tuple.empty, 0, Φ̇.structs.list(Φ̇.tuple.empty))
+              )
+            ),
+            rec-rebuild(accum, index, hashes) ↦ ⟦
+              entry ↦ ξ.ρ.ρ.pairs.at(ξ.index),
+              hash ↦ Φ̇.dataized(Φ̇.structs.hash-code-of(ξ.entry.key)).as-bytes,
+              φ ↦ ξ.ρ.pairs-size.eq(ξ.index).if(
+                ξ.accum,
+                ξ.ρ.rec-rebuild(
+                  ξ.hashes.contains(ξ.hash).if(
+                    ξ.accum, ξ.accum.with(ξ.auto-named-attr-at-59-18)
+                  ),
+                  ξ.index.plus(1),
+                  ξ.hashes.with(ξ.hash)
+                )
+              ),
+              auto-named-attr-at-59-18() ↦ ⟦
+                key ↦ ξ.ρ.entry.key,
+                value ↦ ξ.ρ.entry.value,
+                hash ↦ ξ.ρ.hash
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/structs/range-of-ints.phi b/data/0.49.4/org/eolang/structs/range-of-ints.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/structs/range-of-ints.phi
@@ -0,0 +1,26 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        range-of-ints(start, end) ↦ ⟦
+          φ ↦ 0.eq(ξ.start).or(1.eq(ξ.start.div(ξ.start))).and(
+            0.eq(ξ.end).or(1.eq(ξ.end.div(ξ.end)))
+          ).if(
+            Φ̇.structs.range(ξ.auto-named-attr-at-42-8, ξ.end),
+            Φ̇.error("Some of the arguments are not integers")
+          ),
+          auto-named-attr-at-42-8() ↦ ⟦
+            build(num) ↦ ⟦
+              φ ↦ ξ.num,
+              next ↦ ξ.ρ.build(1.plus(ξ.φ))
+            ⟧,
+            φ ↦ ξ.build(ξ.ρ.start)
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/structs/range.phi b/data/0.49.4/org/eolang/structs/range.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/structs/range.phi
@@ -0,0 +1,23 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        range(start, end) ↦ ⟦
+          φ ↦ Φ̇.structs.list(
+            ξ.start.lt(ξ.end).if(
+              ξ.appended(Φ̇.tuple(Φ̇.tuple.empty, ξ.start), ξ.start.next), Φ̇.tuple.empty
+            )
+          ),
+          appended(acc, current) ↦ ⟦
+            φ ↦ ξ.current.lt(ξ.ρ.end).if(
+              ξ.ρ.appended(ξ.acc.with(ξ.current), ξ.current.next), ξ.acc
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/structs/set.phi b/data/0.49.4/org/eolang/structs/set.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/structs/set.phi
@@ -0,0 +1,37 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      structs() ↦ ⟦
+        set(lst) ↦ ⟦
+          φ ↦ ξ.initialized(
+            Φ̇.structs.map(
+              Φ̇.structs.list(ξ.lst).mapped(
+                ⟦
+                  φ ↦ Φ̇.structs.map.entry(ξ.item, Φ̇.true),
+                  item ↦ ∅
+                ⟧
+              ).origin
+            )
+          ).initialized,
+          initialized(map) ↦ ⟦
+            initialized ↦ ξ,
+            φ ↦ ξ.map.keys,
+            size ↦ ξ.map.size,
+            with(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.with(ξ.item, Φ̇.true))
+            ⟧,
+            without(item) ↦ ⟦
+              φ ↦ ξ.ρ.ρ.ρ.set.initialized(ξ.ρ.map.without(ξ.item))
+            ⟧,
+            has(item) ↦ ⟦
+              φ ↦ ξ.ρ.map.has(ξ.item)
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/switch.phi b/data/0.49.4/org/eolang/switch.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/switch.phi
@@ -0,0 +1,18 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      switch(cases) ↦ ⟦
+        len ↦ Φ̇.dataized(ξ.cases.length).as-bytes,
+        φ ↦ ξ.len.eq(0).if(Φ̇.error("switch cases are empty"), ξ.case-at(0)),
+        case-at(index) ↦ ⟦
+          case ↦ ξ.ρ.cases.at(ξ.index),
+          φ ↦ ξ.index.eq(ξ.ρ.len).if(
+            Φ̇.true, ξ.case.at(0).if(ξ.case.at(1), ξ.ρ.case-at(ξ.index.plus(1)))
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/sys/getenv.phi b/data/0.49.4/org/eolang/sys/getenv.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/sys/getenv.phi
@@ -0,0 +1,19 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        getenv(name) ↦ ⟦
+          φ ↦ Φ̇.sys.os.is-windows.if(
+            Φ̇.sys.win32(
+              "GetEnvironmentVariable", Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.name), 512)
+            ),
+            Φ̇.sys.posix("getenv", Φ̇.tuple(Φ̇.tuple.empty, ξ.name))
+          ).output
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/sys/line-separator.phi b/data/0.49.4/org/eolang/sys/line-separator.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/sys/line-separator.phi
@@ -0,0 +1,14 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        line-separator() ↦ ⟦
+          φ ↦ Φ̇.string(Φ̇.sys.os.is-windows.if("\r\n", "\n").as-bytes)
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/sys/os.phi b/data/0.49.4/org/eolang/sys/os.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/sys/os.phi
@@ -0,0 +1,23 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        os() ↦ ⟦
+          φ ↦ ξ.name,
+          is-windows() ↦ ⟦
+            os-name ↦ Φ̇.dataized(ξ.ρ.name).as-bytes,
+            φ ↦ ξ.os-name.size.gt(6).and(ξ.os-name.slice(0, 7).eq("Windows"))
+          ⟧,
+          is-linux ↦ Φ̇.txt.regex("/linux/i").matches(ξ.name).as-bool,
+          is-macos ↦ Φ̇.txt.regex("/mac/i").matches(ξ.name).as-bool,
+          name() ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_os_name
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/sys/posix.phi b/data/0.49.4/org/eolang/sys/posix.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/sys/posix.phi
@@ -0,0 +1,35 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        posix(name, args) ↦ ⟦
+          stdin-fileno ↦ 0,
+          stdout-fileno ↦ 1,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          inaddr-none ↦ -1,
+          φ() ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_posix_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          timeval(tv-sec, tv-usec) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/sys/win32.phi b/data/0.49.4/org/eolang/sys/win32.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/sys/win32.phi
@@ -0,0 +1,38 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      sys() ↦ ⟦
+        win32(name, args) ↦ ⟦
+          std-input-handle ↦ -10,
+          std-output-handle ↦ -11,
+          af-inet ↦ 2,
+          sock-stream ↦ 1,
+          ipproto-tcp ↦ 6,
+          invalid-socket ↦ -1,
+          socket-error ↦ -1,
+          inaddr-none ↦ -1,
+          winsock-version-2-2 ↦ Φ̇.bytes(⟦ Δ ⤍ 02-02 ⟧),
+          φ() ↦ ⟦
+            λ ⤍ Lorg_eolang_sys_win32_φ
+          ⟧,
+          return(code, output) ↦ ⟦
+            called ↦ ξ,
+            φ ↦ ξ.output
+          ⟧,
+          system-time(year, month, day, day-of-week, hour, minute, second, milliseconds) ↦ ⟦
+            self ↦ ξ
+          ⟧,
+          sockaddr-in(sin-family, sin-port, sin-addr) ↦ ⟦
+            sin-zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00-00 ⟧),
+            size ↦ ξ.sin-family.size.plus(ξ.sin-port.size).plus(ξ.sin-addr.size).plus(
+              ξ.sin-zero.size
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/true.phi b/data/0.49.4/org/eolang/true.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/true.phi
@@ -0,0 +1,21 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      true() ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧),
+        not ↦ Φ̇.false,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.left
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/try.phi b/data/0.49.4/org/eolang/try.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/try.phi
@@ -0,0 +1,11 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      try(main, catch, finally) ↦ ⟦
+        λ ⤍ Lorg_eolang_try
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/tuple.phi b/data/0.49.4/org/eolang/tuple.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/tuple.phi
@@ -0,0 +1,39 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      tuple(head, tail) ↦ ⟦
+        empty() ↦ ⟦
+          length ↦ 0,
+          at(i) ↦ ⟦
+            φ ↦ Φ̇.error("Can't get an object from the empty tuple")
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+          ⟧
+        ⟧,
+        length() ↦ ⟦
+          len ↦ Φ̇.dataized(ξ.ρ.head.length.plus(1)).as-bytes,
+          φ ↦ Φ̇.number(ξ.len)
+        ⟧,
+        at(i) ↦ ⟦
+          len ↦ ξ.ρ.length,
+          idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+          index ↦ Φ̇.dataized(0.gt(ξ.idx).if(ξ.len.plus(ξ.idx), ξ.idx)).as-bytes,
+          φ ↦ 0.gt(ξ.index).or(ξ.len.lte(ξ.index)).if(
+            Φ̇.error("Given index is out of tuple bounds"), ξ.at-fast(ξ.ρ, ξ.len)
+          ),
+          at-fast(tup, len) ↦ ⟦
+            φ ↦ ξ.len.plus(-1).gt(ξ.ρ.index).if(
+              ξ.ρ.at-fast(ξ.tup.head, ξ.len.plus(-1)), ξ.tup.tail
+            )
+          ⟧
+        ⟧,
+        with(x) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/txt/regex.phi b/data/0.49.4/org/eolang/txt/regex.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/txt/regex.phi
@@ -0,0 +1,56 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        regex(expression) ↦ ⟦
+          φ ↦ ξ.compiled,
+          compiled() ↦ ⟦
+            λ ⤍ Lorg_eolang_txt_regex_compiled
+          ⟧,
+          pattern(serialized) ↦ ⟦
+            matches(txt) ↦ ⟦
+              φ ↦ ξ.ρ.match(ξ.txt).next.exists
+            ⟧,
+            match(txt) ↦ ⟦
+              next ↦ ξ.matched-from-index(1, 0).matched,
+              matched-from-index(position, start) ↦ ⟦
+                λ ⤍ Lorg_eolang_txt_regex_pattern_match_matched_from_index
+              ⟧,
+              matched(position, start, from, to, groups) ↦ ⟦
+                matched ↦ ξ,
+                groups-count ↦ ξ.groups.length,
+                exists ↦ ξ.start.gte(0),
+                next ↦ ξ.exists.if(
+                  ξ.ρ.matched-from-index(ξ.position.plus(1), ξ.to).matched,
+                  Φ̇.error("Matched block does not exist, can't get next")
+                ),
+                text ↦ ξ.exists.if(
+                  ξ.group(0), Φ̇.error("Matched block does not exist, can't get text")
+                ),
+                group(index) ↦ ⟦
+                  φ ↦ ξ.ρ.groups.at(ξ.index)
+                ⟧
+              ⟧,
+              not-matched(position) ↦ ⟦
+                φ ↦ ξ.ρ.matched(
+                  ξ.position,
+                  -1,
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'from' position"
+                  ),
+                  Φ̇.error(
+                    "Matched block does not exist, can't get 'to' position"
+                  ),
+                  Φ̇.error("Matched block does not exist, can't get groups")
+                )
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/txt/sprintf.phi b/data/0.49.4/org/eolang/txt/sprintf.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/txt/sprintf.phi
@@ -0,0 +1,14 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        sprintf(format, args) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sprintf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/txt/sscanf.phi b/data/0.49.4/org/eolang/txt/sscanf.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/txt/sscanf.phi
@@ -0,0 +1,14 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        sscanf(format, read) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sscanf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/txt/text.phi b/data/0.49.4/org/eolang/txt/text.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/txt/text.phi
@@ -0,0 +1,275 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        text(origin) ↦ ⟦
+          φ ↦ ξ.origin,
+          is-alphanumeric ↦ Φ̇.txt.regex("/^[A-Za-z0-9]+$/").matches(ξ.origin),
+          is-alpha ↦ Φ̇.txt.regex("/^[a-zA-Z]+$/").matches(ξ.origin),
+          is-ascii ↦ Φ̇.txt.regex("/^[\\x00-\\x7F]*$/").matches(ξ.origin),
+          slice(start, len) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.text(ξ.ρ.origin.slice(ξ.start, ξ.len))
+          ⟧,
+          trimmed-left() ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.first-non-space-index(0)).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(ξ.idx, Φ̇.number(ξ.len).minus(Φ̇.number(ξ.idx)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.index,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(1)), ξ.index
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed-right() ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.origin.length).as-bytes,
+            φ ↦ 0.eq(ξ.len).if(
+              ξ.ρ, ξ.ρ.slice(0, ξ.first-non-space-index(Φ̇.number(ξ.len).plus(-1)))
+            ),
+            first-non-space-index(index) ↦ ⟦
+              char ↦ Φ̇.dataized(ξ.ρ.ρ.origin.slice(ξ.index, 1)).as-bytes,
+              φ ↦ -1.eq(ξ.index).if(
+                0,
+                " ".eq(ξ.char).if(
+                  ξ.ρ.first-non-space-index(ξ.index.plus(-1)), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          trimmed() ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.length).if(ξ.ρ, ξ.ρ.trimmed-left.trimmed-right)
+          ⟧,
+          joined(items) ↦ ⟦
+            delimiter ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            first ↦ ξ.items.at(0),
+            len ↦ Φ̇.dataized(ξ.items.length).as-bytes,
+            not-empty ↦ Φ̇.dataized(
+              1.eq(ξ.len).if(
+                ξ.first, ξ.first.as-bytes.concat(ξ.with-delimiter("".as-bytes, 1))
+              )
+            ).as-bytes,
+            φ ↦ ξ.ρ.ρ.text(0.eq(ξ.len).if("", Φ̇.string(ξ.not-empty))),
+            with-delimiter(acc, index) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.index).if(
+                ξ.acc,
+                ξ.ρ.with-delimiter(
+                  ξ.acc.concat(ξ.ρ.delimiter.concat(ξ.ρ.items.at(ξ.index))), ξ.index.plus(1)
+                )
+              )
+            ⟧
+          ⟧,
+          repeated(times) ↦ ⟦
+            bts ↦ Φ̇.dataized(ξ.ρ.origin.as-bytes).as-bytes,
+            amount ↦ Φ̇.dataized(ξ.times).as-bytes,
+            φ ↦ 0.gt(ξ.amount).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't repeat text %d times", Φ̇.tuple(Φ̇.tuple.empty, ξ.amount)
+                )
+              ),
+              ξ.ρ.ρ.text(
+                0.eq(ξ.amount).if("", Φ̇.string(ξ.rec-repeated(ξ.bts, 1)))
+              )
+            ),
+            rec-repeated(accum, index) ↦ ⟦
+              φ ↦ ξ.ρ.amount.eq(ξ.index).if(
+                ξ.accum, ξ.ρ.rec-repeated(ξ.accum.concat(ξ.ρ.bts), ξ.index.plus(1))
+              )
+            ⟧
+          ⟧,
+          contains(substring) ↦ ⟦
+            φ ↦ -1.eq(ξ.ρ.index-of(ξ.substring)).not
+          ⟧,
+          ends-with(substring) ↦ ⟦
+            substr ↦ Φ̇.dataized(ξ.substring).as-bytes,
+            φ ↦ ξ.ρ.index-of(ξ.substr).eq(ξ.ρ.length.minus(ξ.substr.size))
+          ⟧,
+          starts-with(substring) ↦ ⟦
+            φ ↦ 0.eq(ξ.ρ.index-of(ξ.substring))
+          ⟧,
+          index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            end ↦ Φ̇.dataized(Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(-1, ξ.rec-index-of-substr(0)),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ ξ.ρ.end.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          last-index-of(substring) ↦ ⟦
+            self-len ↦ Φ̇.dataized(Φ̇.string(ξ.ρ.origin.as-bytes).length).as-bytes,
+            substr ↦ Φ̇.string(ξ.substr-as-bytes),
+            sub-len ↦ Φ̇.dataized(ξ.substr.length).as-bytes,
+            φ ↦ Φ̇.number(ξ.sub-len).gt(ξ.self-len).or(
+              ξ.sub-len.eq(ξ.self-len).and(ξ.substr.eq(ξ.ρ.origin).not)
+            ).if(
+              -1,
+              ξ.rec-index-of-substr(
+                Φ̇.number(ξ.self-len).minus(Φ̇.number(ξ.sub-len))
+              )
+            ),
+            rec-index-of-substr(idx) ↦ ⟦
+              φ ↦ 0.eq(ξ.idx).if(
+                ξ.contains.if(ξ.idx, -1),
+                ξ.contains.if(ξ.idx, ξ.ρ.rec-index-of-substr(ξ.idx.plus(-1)))
+              ),
+              contains ↦ ξ.ρ.substr.eq(ξ.ρ.ρ.slice(ξ.idx, ξ.ρ.sub-len))
+            ⟧,
+            substr-as-bytes ↦ Φ̇.dataized(ξ.substring).as-bytes
+          ⟧,
+          up-cased() ↦ ⟦
+            ascii-z ↦ Φ̇.dataized(ξ.ascii("z")).as-bytes,
+            ascii-a ↦ Φ̇.dataized(ξ.ascii("a")).as-bytes,
+            distance ↦ Φ̇.number(ξ.ascii-a).minus(ξ.ascii("A")),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-258-22
+                )
+              )
+            ),
+            ascii(char) ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00-00-00-00 ⟧).concat(ξ.char.as-bytes).as-i64.as-number
+            ⟧,
+            auto-named-attr-at-258-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.minus(ξ.ρ.distance).as-i64.as-bytes.slice(7, 1), ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          low-cased() ↦ ⟦
+            ascii-z ↦ ξ.ρ.up-cased.ascii("Z"),
+            ascii-a ↦ ξ.ρ.up-cased.ascii("A"),
+            φ ↦ ξ.ρ.ρ.text(
+              Φ̇.string(
+                Φ̇.structs.list(Φ̇.structs.bytes-as-array(ξ.ρ.origin.as-bytes)).reduced(
+                  Φ̇.bytes(⟦ Δ ⤍ -- ⟧), ξ.auto-named-attr-at-291-22
+                )
+              )
+            ),
+            auto-named-attr-at-291-22(accum, byte) ↦ ⟦
+              ascii-bte ↦ ξ.ρ.ρ.up-cased.ascii(ξ.byte),
+              φ ↦ ξ.accum.concat(
+                ξ.ascii-bte.lte(ξ.ρ.ascii-z).and(ξ.ascii-bte.gte(ξ.ρ.ascii-a)).if(
+                  ξ.ascii-bte.plus(ξ.ρ.ρ.up-cased.distance).as-i64.as-bytes.slice(
+                    7, 1
+                  ),
+                  ξ.byte
+                )
+              )
+            ⟧
+          ⟧,
+          at(i) ↦ ⟦
+            len ↦ Φ̇.dataized(ξ.ρ.length).as-bytes,
+            idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+            index ↦ Φ̇.dataized(
+              0.gt(ξ.idx).if(Φ̇.number(ξ.len).plus(ξ.idx), ξ.idx)
+            ).as-bytes,
+            φ ↦ 0.gt(ξ.index).or(Φ̇.number(ξ.index).gte(ξ.len)).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Given index %d is out of text bounds", Φ̇.tuple(Φ̇.tuple.empty, ξ.index)
+                )
+              ),
+              ξ.ρ.slice(ξ.index, 1)
+            )
+          ⟧,
+          replaced(target, replacement) ↦ ⟦
+            self-as-bytes ↦ Φ̇.dataized(ξ.ρ.origin).as-bytes,
+            reinit ↦ Φ̇.string(ξ.self-as-bytes),
+            matched ↦ ξ.target.match(ξ.reinit).next,
+            φ ↦ ξ.matched.exists.not.if(
+              Φ̇.txt.text(ξ.reinit),
+              Φ̇.txt.text(ξ.rec-replaced(ξ.matched, "", ξ.matched.start))
+            ),
+            rec-replaced(block, accum, start) ↦ ⟦
+              φ ↦ ξ.block.exists.if(
+                ξ.ρ.rec-replaced(
+                  ξ.block.next,
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.block.from.minus(ξ.start))
+                  ).concat(ξ.ρ.replacement),
+                  ξ.block.to
+                ),
+                Φ̇.string(
+                  ξ.accum.concat(
+                    ξ.ρ.reinit.slice(ξ.start, ξ.ρ.reinit.length.minus(ξ.start))
+                  )
+                )
+              )
+            ⟧
+          ⟧,
+          as-number() ↦ ⟦
+            scanned ↦ Φ̇.txt.sscanf("%f", ξ.ρ.origin),
+            φ ↦ ξ.scanned.length.eq(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Can't convert text %s to number", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.origin)
+                )
+              ),
+              ξ.scanned.tail
+            )
+          ⟧,
+          split(delimiter) ↦ ⟦
+            delim ↦ Φ̇.dataized(ξ.delimiter).as-bytes,
+            self-as-bytes ↦ ξ.ρ.origin.as-bytes,
+            len ↦ Φ̇.dataized(ξ.self-as-bytes.size).as-bytes,
+            φ ↦ ξ.len.eq(0).if(Φ̇.tuple.empty, ξ.rec-split(Φ̇.tuple.empty, 0, 0)),
+            rec-split(accum, start, current) ↦ ⟦
+              φ ↦ ξ.ρ.len.eq(ξ.current).if(
+                ξ.with-substr,
+                ξ.ρ.delim.eq(ξ.ρ.self-as-bytes.slice(ξ.current, 1)).if(
+                  ξ.ρ.rec-split(
+                    ξ.with-substr, ξ.current.plus(1), ξ.current.plus(1)
+                  ),
+                  ξ.ρ.rec-split(ξ.accum, ξ.start, ξ.current.plus(1))
+                )
+              ),
+              with-substr ↦ ξ.accum.with(
+                Φ̇.string(
+                  ξ.ρ.self-as-bytes.slice(ξ.start, ξ.current.minus(ξ.start))
+                )
+              )
+            ⟧
+          ⟧,
+          chained(others) ↦ ⟦
+            φ ↦ 0.eq(ξ.others.length).if(
+              ξ.ρ,
+              ξ.ρ.ρ.text(
+                Φ̇.string(
+                  Φ̇.structs.list(ξ.others).reduced(
+                    ξ.ρ.origin.as-bytes,
+                    ⟦
+                      φ ↦ ξ.accum.concat(ξ.str.as-bytes),
+                      accum ↦ ∅,
+                      str ↦ ∅
+                    ⟧
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.49.4/org/eolang/while.phi b/data/0.49.4/org/eolang/while.phi
new file mode 100644
--- /dev/null
+++ b/data/0.49.4/org/eolang/while.phi
@@ -0,0 +1,22 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      while(condition, body) ↦ ⟦
+        φ ↦ ξ.condition(0).as-bool.if(ξ.loop(0), Φ̇.false),
+        loop(index) ↦ ⟦
+          current ↦ ξ.ρ.body(ξ.index),
+          φ ↦ ξ.ρ.condition(ξ.index.plus(1)).as-bool.if(
+            Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.current), ξ.ρ.loop(ξ.index.plus(1))
+              )
+            ),
+            ξ.current
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/dependencies.md b/data/0.50.0/dependencies.md
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/dependencies.md
@@ -0,0 +1,1016 @@
+# Dependencies
+
+## [org/eolang/bytes.phi](./org/eolang/bytes.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      bytes(data) ↦ ⟦
+        φ ↦ ξ.data,
+        as-bytes ↦ ξ,
+        as-bool ↦ ξ.eq(Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)),
+        as-number() ↦ ⟦
+          φ ↦ ξ.ρ.eq(Φ̇.nan.as-bytes).if(
+            Φ̇.nan,
+            ξ.ρ.eq(Φ̇.positive-infinity.as-bytes).if(
+              Φ̇.positive-infinity,
+              ξ.ρ.eq(Φ̇.negative-infinity.as-bytes).if(
+                Φ̇.negative-infinity,
+                ξ.ρ.size.eq(8).if(
+                  Φ̇.number(ξ.ρ),
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Can't convert non 8 length bytes to a number, bytes are %x",
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+                    )
+                  )
+                )
+              )
+            )
+          )
+        ⟧,
+        eq(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_eq
+        ⟧,
+        size() ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_size
+        ⟧,
+        slice(start, len) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_slice
+        ⟧,
+        as-i64() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(8).if(
+            Φ̇.i64(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 8 length bytes to i64, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i32() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(4).if(
+            Φ̇.i32(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 4 length bytes to i32, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i16() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(2).if(
+            Φ̇.i16(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 2 length bytes to i16, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        and(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_and
+        ⟧,
+        or(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_or
+        ⟧,
+        xor(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_xor
+        ⟧,
+        not() ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_not
+        ⟧,
+        left(x) ↦ ⟦
+          φ ↦ ξ.ρ.right(ξ.x.neg)
+        ⟧,
+        right(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_right
+        ⟧,
+        concat(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_concat
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/dataized.phi](./org/eolang/dataized.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      dataized(target) ↦ ⟦
+        φ ↦ Φ̇.try(
+          ξ.target,
+          ⟦
+            ex ↦ ∅,
+            φ ↦ Φ̇.error(ξ.ex)
+          ⟧,
+          Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)
+        )
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/error.phi](./org/eolang/error.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      error(message) ↦ ⟦
+        λ ⤍ Lorg_eolang_error
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/false.phi](./org/eolang/false.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      false() ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+        not ↦ Φ̇.true,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.right
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i16.phi](./org/eolang/i16.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i16(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i16 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32.as-i16),
+        as-i64 ↦ ξ.as-i32.as-i64,
+        as-number ↦ ξ.as-i64.as-number,
+        as-i32() ↦ ⟦
+          λ ⤍ Lorg_eolang_i16_as_i32
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lt(ξ.x.as-i16.as-i32)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lte(ξ.x.as-i16.as-i32)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gt(ξ.x.as-i16.as-i32)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gte(ξ.x.as-i16.as-i32)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.times(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.plus(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i16.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i16 ↦ ξ.x.as-i16,
+          bts ↦ ξ.ρ.as-i32.div(ξ.x-as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧),
+          φ ↦ ξ.x-as-i16.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i16 zero",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i32.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))).if(
+              ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i32.phi](./org/eolang/i32.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i32(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i32 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32),
+        as-number ↦ ξ.as-i64.as-number,
+        as-i64() ↦ ⟦
+          λ ⤍ Lorg_eolang_i32_as_i64
+        ⟧,
+        as-i16() ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 2).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(
+            Φ̇.i16(ξ.ρ.as-bytes.slice(2, 2)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i32 number %d to i16 because it's out of i16 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            )
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lt(ξ.x.as-i32.as-i64)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lte(ξ.x.as-i32.as-i64)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gt(ξ.x.as-i32.as-i64)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gte(ξ.x.as-i32.as-i64)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.times(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.plus(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i32.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i32 ↦ ξ.x.as-i32,
+          bts ↦ ξ.ρ.as-i64.div(ξ.x-as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧),
+          φ ↦ ξ.x-as-i32.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i32 zero", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))).if(
+              ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/i64.phi](./org/eolang/i64.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i64(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i64 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64),
+        as-i16 ↦ ξ.as-i32.as-i16,
+        as-i32() ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 4).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(
+            Φ̇.i32(ξ.ρ.as-bytes.slice(4, 4)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i64 number %d to i32 because it's out of i32 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-number)
+              )
+            )
+          )
+        ⟧,
+        as-number() ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_as_number
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.as-i64.gt(ξ.ρ.minus(ξ.ρ.ρ.i64(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(ξ.ρ.ρ.i64(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_div
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/dead-input.phi](./org/eolang/io/dead-input.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        dead-input() ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block,
+            input-block() ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ -- ⟧),
+              read(size) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.input-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/io/dead-output.phi](./org/eolang/io/dead-output.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        dead-output() ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block,
+            output-block() ↦ ⟦
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.output-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/nan.phi](./org/eolang/nan.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      nan() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F8-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ ξ,
+        is-nan ↦ Φ̇.true,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert NaN to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        times(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        plus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        div(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/negative-infinity.phi](./org/eolang/negative-infinity.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      negative-infinity() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ FF-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.positive-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert negative infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.positive-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.positive-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.positive-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/number.phi](./org/eolang/number.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      number(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-number ↦ ξ,
+        neg ↦ ξ.times(-1),
+        as-i32 ↦ ξ.as-i64.as-i32,
+        as-i16 ↦ ξ.as-i32.as-i16,
+        is-nan ↦ ξ.as-bytes.eq(Φ̇.nan.as-bytes),
+        as-i64() ↦ ⟦
+          λ ⤍ Lorg_eolang_number_as_i64
+        ⟧,
+        eq(x) ↦ ⟦
+          x-as-bytes ↦ Φ̇.dataized(ξ.x).as-bytes,
+          self-as-bytes ↦ ξ.ρ.as-bytes,
+          pos-zero-as-bytes ↦ 0.as-bytes,
+          neg-zero-as-bytes ↦ -0.as-bytes,
+          φ ↦ ξ.ρ.is-nan.or(Φ̇.number(ξ.x-as-bytes).is-nan).if(
+            Φ̇.false,
+            ξ.x-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+              ξ.x-as-bytes.eq(ξ.neg-zero-as-bytes)
+            ).and(
+              ξ.self-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+                ξ.self-as-bytes.eq(ξ.neg-zero-as-bytes)
+              )
+            ).or(ξ.self-as-bytes.eq(ξ.x-as-bytes))
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.gt(ξ.ρ.minus(Φ̇.number(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(Φ̇.number(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_div
+        ⟧,
+        floor() ↦ ⟦
+          λ ⤍ Lorg_eolang_number_floor
+        ⟧,
+        is-integer() ↦ ⟦
+          φ ↦ ξ.ρ.is-finite.and(ξ.ρ.eq(ξ.ρ.floor))
+        ⟧,
+        is-finite() ↦ ⟦
+          φ ↦ ξ.ρ.is-nan.not.and(
+            ξ.ρ.eq(Φ̇.positive-infinity).or(ξ.ρ.eq(Φ̇.negative-infinity)).not
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/positive-infinity.phi](./org/eolang/positive-infinity.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      positive-infinity() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.negative-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert positive infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        gt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.negative-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.negative-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.negative-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/seq.phi](./org/eolang/seq.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      seq(steps) ↦ ⟦
+        φ ↦ ξ.steps.length.eq(0).if(Φ̇.true, ξ.loop(0)),
+        max-len ↦ Φ̇.dataized(ξ.steps.length.minus(1)).as-bytes,
+        loop(index) ↦ ⟦
+          φ ↦ ξ.index.lt(ξ.ρ.max-len).and(
+            Φ̇.dataized(ξ.ρ.steps.at(ξ.index)).as-bool.or(Φ̇.true)
+          ).if(ξ.ρ.loop(ξ.index.plus(1)), ξ.ρ.steps.at(ξ.index))
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/string.phi](./org/eolang/string.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      string(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        length() ↦ ⟦
+          size ↦ ξ.ρ.as-bytes.size,
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          φ ↦ ξ.size.eq(0).if(0, ξ.rec-length(0, 0)),
+          increase-length(index, char-size, len) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-length(ξ.index.plus(ξ.char-size), ξ.len.plus(1))
+            )
+          ⟧,
+          rec-length(index, accum) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.accum,
+              ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                ξ.ρ.increase-length(ξ.index, 1, ξ.accum),
+                ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                  ξ.ρ.increase-length(ξ.index, 2, ξ.accum),
+                  ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                    ξ.ρ.increase-length(ξ.index, 3, ξ.accum),
+                    ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                      ξ.ρ.increase-length(ξ.index, 4, ξ.accum),
+                      Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Unknown byte format (%x), can't recognize character",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        slice(start, len) ↦ ⟦
+          start-bytes ↦ Φ̇.dataized(ξ.start).as-bytes,
+          len-bytes ↦ Φ̇.dataized(ξ.len).as-bytes,
+          num-start ↦ Φ̇.number(ξ.start-bytes),
+          num-len ↦ Φ̇.number(ξ.len-bytes),
+          size ↦ ξ.ρ.as-bytes.size,
+          end ↦ ξ.num-start.plus(ξ.num-len),
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          bts-start ↦ Φ̇.dataized(
+            ξ.rec-index(
+              0,
+              0,
+              ξ.num-start,
+              Φ̇.txt.sprintf(
+                "Start index (%d) is out of string bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            )
+          ).as-bytes,
+          bts-length ↦ ξ.rec-index(
+            Φ̇.number(ξ.bts-start),
+            0,
+            ξ.num-len,
+            Φ̇.txt.sprintf(
+              "Start index + length to slice (%d) is out of string bounds",
+              Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start.plus(ξ.num-len))
+            )
+          ).minus(ξ.bts-start),
+          φ ↦ ξ.num-start.lt(0).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Start index must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            ),
+            ξ.num-len.lt(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Length to slice must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-len)
+                )
+              ),
+              ξ.num-len.eq(0).if(
+                "", Φ̇.string(ξ.ρ.as-bytes.slice(ξ.bts-start, ξ.bts-length))
+              )
+            )
+          ),
+          increase(index, char-size, accum, result, cause) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-index(
+                ξ.index.plus(ξ.char-size), ξ.accum.plus(1), ξ.result, ξ.cause
+              )
+            )
+          ⟧,
+          rec-index(index, accum, result, cause) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.accum.eq(ξ.result).if(
+              ξ.index,
+              ξ.index.eq(ξ.ρ.size).if(
+                Φ̇.error(ξ.cause),
+                ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                  ξ.ρ.increase(ξ.index, 1, ξ.accum, ξ.result, ξ.cause),
+                  ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                    ξ.ρ.increase(ξ.index, 2, ξ.accum, ξ.result, ξ.cause),
+                    ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                      ξ.ρ.increase(ξ.index, 3, ξ.accum, ξ.result, ξ.cause),
+                      ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                        ξ.ρ.increase(ξ.index, 4, ξ.accum, ξ.result, ξ.cause),
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Unknown byte format (%x), can't recognize character",
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                          )
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/true.phi](./org/eolang/true.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      true() ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧),
+        not ↦ Φ̇.false,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.left
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/try.phi](./org/eolang/try.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      try(main, catch, finally) ↦ ⟦
+        λ ⤍ Lorg_eolang_try
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/tuple.phi](./org/eolang/tuple.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      tuple(head, tail) ↦ ⟦
+        empty() ↦ ⟦
+          length ↦ 0,
+          at(i) ↦ ⟦
+            φ ↦ Φ̇.error("Can't get an object from the empty tuple")
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+          ⟧
+        ⟧,
+        length() ↦ ⟦
+          len ↦ Φ̇.dataized(ξ.ρ.head.length.plus(1)).as-bytes,
+          φ ↦ Φ̇.number(ξ.len)
+        ⟧,
+        at(i) ↦ ⟦
+          len ↦ ξ.ρ.length,
+          idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+          index ↦ Φ̇.dataized(0.gt(ξ.idx).if(ξ.len.plus(ξ.idx), ξ.idx)).as-bytes,
+          φ ↦ 0.gt(ξ.index).or(ξ.len.lte(ξ.index)).if(
+            Φ̇.error("Given index is out of tuple bounds"), ξ.at-fast(ξ.ρ, ξ.len)
+          ),
+          at-fast(tup, len) ↦ ⟦
+            φ ↦ ξ.len.plus(-1).gt(ξ.ρ.index).if(
+              ξ.ρ.at-fast(ξ.tup.head, ξ.len.plus(-1)), ξ.tup.tail
+            )
+          ⟧
+        ⟧,
+        with(x) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/txt/sprintf.phi](./org/eolang/txt/sprintf.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        sprintf(format, args) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sprintf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
+## [org/eolang/while.phi](./org/eolang/while.phi)
+
+```console
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      while(condition, body) ↦ ⟦
+        φ ↦ ξ.condition(0).as-bool.if(ξ.loop(0), Φ̇.false),
+        loop(index) ↦ ⟦
+          current ↦ ξ.ρ.body(ξ.index),
+          φ ↦ ξ.ρ.condition(ξ.index.plus(1)).as-bool.if(
+            Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.current), ξ.ρ.loop(ξ.index.plus(1))
+              )
+            ),
+            ξ.current
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
+```
+
diff --git a/data/0.50.0/org/eolang/bytes.phi b/data/0.50.0/org/eolang/bytes.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/bytes.phi
@@ -0,0 +1,96 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      bytes(data) ↦ ⟦
+        φ ↦ ξ.data,
+        as-bytes ↦ ξ,
+        as-bool ↦ ξ.eq(Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)),
+        as-number() ↦ ⟦
+          φ ↦ ξ.ρ.eq(Φ̇.nan.as-bytes).if(
+            Φ̇.nan,
+            ξ.ρ.eq(Φ̇.positive-infinity.as-bytes).if(
+              Φ̇.positive-infinity,
+              ξ.ρ.eq(Φ̇.negative-infinity.as-bytes).if(
+                Φ̇.negative-infinity,
+                ξ.ρ.size.eq(8).if(
+                  Φ̇.number(ξ.ρ),
+                  Φ̇.error(
+                    Φ̇.txt.sprintf(
+                      "Can't convert non 8 length bytes to a number, bytes are %x",
+                      Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+                    )
+                  )
+                )
+              )
+            )
+          )
+        ⟧,
+        eq(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_eq
+        ⟧,
+        size() ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_size
+        ⟧,
+        slice(start, len) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_slice
+        ⟧,
+        as-i64() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(8).if(
+            Φ̇.i64(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 8 length bytes to i64, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i32() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(4).if(
+            Φ̇.i32(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 4 length bytes to i32, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        as-i16() ↦ ⟦
+          φ ↦ ξ.ρ.size.eq(2).if(
+            Φ̇.i16(ξ.ρ),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert non 2 length bytes to i16, bytes are %x",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ)
+              )
+            )
+          )
+        ⟧,
+        and(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_and
+        ⟧,
+        or(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_or
+        ⟧,
+        xor(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_xor
+        ⟧,
+        not() ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_not
+        ⟧,
+        left(x) ↦ ⟦
+          φ ↦ ξ.ρ.right(ξ.x.neg)
+        ⟧,
+        right(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_right
+        ⟧,
+        concat(b) ↦ ⟦
+          λ ⤍ Lorg_eolang_bytes_concat
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/dataized.phi b/data/0.50.0/org/eolang/dataized.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/dataized.phi
@@ -0,0 +1,18 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      dataized(target) ↦ ⟦
+        φ ↦ Φ̇.try(
+          ξ.target,
+          ⟦
+            ex ↦ ∅,
+            φ ↦ Φ̇.error(ξ.ex)
+          ⟧,
+          Φ̇.bytes(⟦ Δ ⤍ 01- ⟧)
+        )
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/error.phi b/data/0.50.0/org/eolang/error.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/error.phi
@@ -0,0 +1,11 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      error(message) ↦ ⟦
+        λ ⤍ Lorg_eolang_error
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/false.phi b/data/0.50.0/org/eolang/false.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/false.phi
@@ -0,0 +1,21 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      false() ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+        not ↦ Φ̇.true,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.right
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/i16.phi b/data/0.50.0/org/eolang/i16.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/i16.phi
@@ -0,0 +1,67 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i16(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i16 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32.as-i16),
+        as-i64 ↦ ξ.as-i32.as-i64,
+        as-number ↦ ξ.as-i64.as-number,
+        as-i32() ↦ ⟦
+          λ ⤍ Lorg_eolang_i16_as_i32
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lt(ξ.x.as-i16.as-i32)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.lte(ξ.x.as-i16.as-i32)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gt(ξ.x.as-i16.as-i32)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i32.gte(ξ.x.as-i16.as-i32)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.times(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i32.plus(ξ.x.as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i16.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i16 ↦ ξ.x.as-i16,
+          bts ↦ ξ.ρ.as-i32.div(ξ.x-as-i16.as-i32).as-bytes,
+          left ↦ ξ.bts.slice(0, 2),
+          right ↦ ξ.bts.slice(2, 2),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧),
+          φ ↦ ξ.x-as-i16.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i16 zero",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i32.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))).if(
+              ξ.ρ.ρ.i16(ξ.right), ξ.ρ.ρ.i16(ξ.left).plus(ξ.ρ.ρ.i16(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/i32.phi b/data/0.50.0/org/eolang/i32.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/i32.phi
@@ -0,0 +1,79 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i32(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i32 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64.as-i32),
+        as-number ↦ ξ.as-i64.as-number,
+        as-i64() ↦ ⟦
+          λ ⤍ Lorg_eolang_i32_as_i64
+        ⟧,
+        as-i16() ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 2).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF ⟧))
+          ).if(
+            Φ̇.i16(ξ.ρ.as-bytes.slice(2, 2)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i32 number %d to i16 because it's out of i16 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            )
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lt(ξ.x.as-i32.as-i64)
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.lte(ξ.x.as-i32.as-i64)
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gt(ξ.x.as-i32.as-i64)
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-i64.gte(ξ.x.as-i32.as-i64)
+        ⟧,
+        times(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.times(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        plus(x) ↦ ⟦
+          bts ↦ ξ.ρ.as-i64.plus(ξ.x.as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right)))
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ.plus(ξ.x.as-i32.neg)
+        ⟧,
+        div(x) ↦ ⟦
+          x-as-i32 ↦ ξ.x.as-i32,
+          bts ↦ ξ.ρ.as-i64.div(ξ.x-as-i32.as-i64).as-bytes,
+          left ↦ ξ.bts.slice(0, 4),
+          right ↦ ξ.bts.slice(4, 4),
+          zero ↦ Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧),
+          φ ↦ ξ.x-as-i32.eq(ξ.zero).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't divide %d by i32 zero", Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-i64.as-number)
+              )
+            ),
+            ξ.left.eq(ξ.zero).or(ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))).if(
+              ξ.ρ.ρ.i32(ξ.right), ξ.ρ.ρ.i32(ξ.left).plus(ξ.ρ.ρ.i32(ξ.right))
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/i64.phi b/data/0.50.0/org/eolang/i64.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/i64.phi
@@ -0,0 +1,59 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      i64(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-i64 ↦ ξ,
+        neg ↦ ξ.times(-1.as-i64),
+        as-i16 ↦ ξ.as-i32.as-i16,
+        as-i32() ↦ ⟦
+          left ↦ ξ.ρ.as-bytes.slice(0, 4).as-bytes,
+          φ ↦ ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ 00-00-00-00 ⟧)).or(
+            ξ.left.eq(Φ̇.bytes(⟦ Δ ⤍ FF-FF-FF-FF ⟧))
+          ).if(
+            Φ̇.i32(ξ.ρ.as-bytes.slice(4, 4)),
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Can't convert i64 number %d to i32 because it's out of i32 bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.ρ.as-number)
+              )
+            )
+          )
+        ⟧,
+        as-number() ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_as_number
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.as-i64.gt(ξ.ρ.minus(ξ.ρ.ρ.i64(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(ξ.ρ.ρ.i64(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_i64_div
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/io/dead-input.phi b/data/0.50.0/org/eolang/io/dead-input.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/io/dead-input.phi
@@ -0,0 +1,22 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        dead-input() ↦ ⟦
+          read(size) ↦ ⟦
+            φ ↦ ξ.input-block,
+            input-block() ↦ ⟦
+              φ ↦ Φ̇.bytes(⟦ Δ ⤍ -- ⟧),
+              read(size) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.input-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/io/dead-output.phi b/data/0.50.0/org/eolang/io/dead-output.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/io/dead-output.phi
@@ -0,0 +1,22 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      io() ↦ ⟦
+        dead-output() ↦ ⟦
+          write(buffer) ↦ ⟦
+            φ ↦ ξ.output-block,
+            output-block() ↦ ⟦
+              φ ↦ Φ̇.true,
+              write(buffer) ↦ ⟦
+                φ ↦ ξ.ρ.ρ.output-block
+              ⟧
+            ⟧
+          ⟧
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/nan.phi b/data/0.50.0/org/eolang/nan.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/nan.phi
@@ -0,0 +1,44 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      nan() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F8-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ ξ,
+        is-nan ↦ Φ̇.true,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert NaN to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        times(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        plus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        minus(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧,
+        div(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/negative-infinity.phi b/data/0.50.0/org/eolang/negative-infinity.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/negative-infinity.phi
@@ -0,0 +1,61 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      negative-infinity() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ FF-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.positive-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert negative infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        gt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        gte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.positive-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.positive-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.positive-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/number.phi b/data/0.50.0/org/eolang/number.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/number.phi
@@ -0,0 +1,74 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      number(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        as-number ↦ ξ,
+        neg ↦ ξ.times(-1),
+        as-i32 ↦ ξ.as-i64.as-i32,
+        as-i16 ↦ ξ.as-i32.as-i16,
+        is-nan ↦ ξ.as-bytes.eq(Φ̇.nan.as-bytes),
+        as-i64() ↦ ⟦
+          λ ⤍ Lorg_eolang_number_as_i64
+        ⟧,
+        eq(x) ↦ ⟦
+          x-as-bytes ↦ Φ̇.dataized(ξ.x).as-bytes,
+          self-as-bytes ↦ ξ.ρ.as-bytes,
+          pos-zero-as-bytes ↦ 0.as-bytes,
+          neg-zero-as-bytes ↦ -0.as-bytes,
+          φ ↦ ξ.ρ.is-nan.or(Φ̇.number(ξ.x-as-bytes).is-nan).if(
+            Φ̇.false,
+            ξ.x-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+              ξ.x-as-bytes.eq(ξ.neg-zero-as-bytes)
+            ).and(
+              ξ.self-as-bytes.eq(ξ.pos-zero-as-bytes).or(
+                ξ.self-as-bytes.eq(ξ.neg-zero-as-bytes)
+              )
+            ).or(ξ.self-as-bytes.eq(ξ.x-as-bytes))
+          )
+        ⟧,
+        lt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ 0.gt(ξ.ρ.minus(Φ̇.number(ξ.value)))
+        ⟧,
+        lte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.lt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        gt(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_gt
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.gt(ξ.value).or(ξ.ρ.eq(ξ.value))
+        ⟧,
+        times(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_times
+        ⟧,
+        plus(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_plus
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ ξ.ρ.plus(Φ̇.number(ξ.value).neg)
+        ⟧,
+        div(x) ↦ ⟦
+          λ ⤍ Lorg_eolang_number_div
+        ⟧,
+        floor() ↦ ⟦
+          λ ⤍ Lorg_eolang_number_floor
+        ⟧,
+        is-integer() ↦ ⟦
+          φ ↦ ξ.ρ.is-finite.and(ξ.ρ.eq(ξ.ρ.floor))
+        ⟧,
+        is-finite() ↦ ⟦
+          φ ↦ ξ.ρ.is-nan.not.and(
+            ξ.ρ.eq(Φ̇.positive-infinity).or(ξ.ρ.eq(Φ̇.negative-infinity)).not
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/positive-infinity.phi b/data/0.50.0/org/eolang/positive-infinity.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/positive-infinity.phi
@@ -0,0 +1,61 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      positive-infinity() ↦ ⟦
+        φ ↦ Φ̇.number(Φ̇.bytes(⟦ Δ ⤍ 7F-F0-00-00-00-00-00-00 ⟧)),
+        floor ↦ ξ,
+        neg ↦ Φ̇.negative-infinity,
+        is-nan ↦ Φ̇.false,
+        is-finite ↦ Φ̇.false,
+        is-integer ↦ Φ̇.false,
+        as-i64 ↦ Φ̇.error("Can't convert positive infinity to i64"),
+        eq(x) ↦ ⟦
+          φ ↦ ξ.ρ.as-bytes.eq(ξ.x.as-bytes)
+        ⟧,
+        lt(x) ↦ ⟦
+          φ ↦ Φ̇.false
+        ⟧,
+        lte(x) ↦ ⟦
+          φ ↦ ξ.ρ.eq(ξ.x)
+        ⟧,
+        gt(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.ρ.eq(ξ.value)).not
+        ⟧,
+        gte(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.not
+        ⟧,
+        times(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.eq(0)).if(
+            Φ̇.nan, ξ.num.gt(0).if(ξ.ρ, Φ̇.negative-infinity)
+          )
+        ⟧,
+        plus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(Φ̇.negative-infinity)).if(
+            Φ̇.nan, ξ.ρ
+          )
+        ⟧,
+        minus(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          φ ↦ Φ̇.number(ξ.value).is-nan.or(ξ.value.eq(ξ.ρ)).if(Φ̇.nan, ξ.ρ)
+        ⟧,
+        div(x) ↦ ⟦
+          value ↦ Φ̇.dataized(ξ.x).as-bytes,
+          num ↦ Φ̇.number(ξ.value),
+          φ ↦ ξ.num.is-nan.or(ξ.num.is-finite.not).if(
+            Φ̇.nan,
+            ξ.value.eq(-0.as-bytes).or(0.gt(ξ.value)).if(
+              Φ̇.negative-infinity, ξ.ρ
+            )
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/seq.phi b/data/0.50.0/org/eolang/seq.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/seq.phi
@@ -0,0 +1,17 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      seq(steps) ↦ ⟦
+        φ ↦ ξ.steps.length.eq(0).if(Φ̇.true, ξ.loop(0)),
+        max-len ↦ Φ̇.dataized(ξ.steps.length.minus(1)).as-bytes,
+        loop(index) ↦ ⟦
+          φ ↦ ξ.index.lt(ξ.ρ.max-len).and(
+            Φ̇.dataized(ξ.ρ.steps.at(ξ.index)).as-bool.or(Φ̇.true)
+          ).if(ξ.ρ.loop(ξ.index.plus(1)), ξ.ρ.steps.at(ξ.index))
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/string.phi b/data/0.50.0/org/eolang/string.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/string.phi
@@ -0,0 +1,155 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      string(as-bytes) ↦ ⟦
+        φ ↦ ξ.as-bytes,
+        length() ↦ ⟦
+          size ↦ ξ.ρ.as-bytes.size,
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          φ ↦ ξ.size.eq(0).if(0, ξ.rec-length(0, 0)),
+          increase-length(index, char-size, len) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-length(ξ.index.plus(ξ.char-size), ξ.len.plus(1))
+            )
+          ⟧,
+          rec-length(index, accum) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.index.eq(ξ.ρ.size).if(
+              ξ.accum,
+              ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                ξ.ρ.increase-length(ξ.index, 1, ξ.accum),
+                ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                  ξ.ρ.increase-length(ξ.index, 2, ξ.accum),
+                  ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                    ξ.ρ.increase-length(ξ.index, 3, ξ.accum),
+                    ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                      ξ.ρ.increase-length(ξ.index, 4, ξ.accum),
+                      Φ̇.error(
+                        Φ̇.txt.sprintf(
+                          "Unknown byte format (%x), can't recognize character",
+                          Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧,
+        slice(start, len) ↦ ⟦
+          start-bytes ↦ Φ̇.dataized(ξ.start).as-bytes,
+          len-bytes ↦ Φ̇.dataized(ξ.len).as-bytes,
+          num-start ↦ Φ̇.number(ξ.start-bytes),
+          num-len ↦ Φ̇.number(ξ.len-bytes),
+          size ↦ ξ.ρ.as-bytes.size,
+          end ↦ ξ.num-start.plus(ξ.num-len),
+          pattern-one ↦ Φ̇.bytes(⟦ Δ ⤍ 80- ⟧),
+          pattern-two ↦ Φ̇.bytes(⟦ Δ ⤍ E0- ⟧),
+          pattern-three ↦ Φ̇.bytes(⟦ Δ ⤍ F0- ⟧),
+          pattern-four ↦ Φ̇.bytes(⟦ Δ ⤍ F8- ⟧),
+          result-one ↦ Φ̇.bytes(⟦ Δ ⤍ 00- ⟧),
+          result-two ↦ Φ̇.bytes(⟦ Δ ⤍ C0- ⟧),
+          result-three ↦ ξ.pattern-two,
+          result-four ↦ ξ.pattern-three,
+          bts-start ↦ Φ̇.dataized(
+            ξ.rec-index(
+              0,
+              0,
+              ξ.num-start,
+              Φ̇.txt.sprintf(
+                "Start index (%d) is out of string bounds",
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            )
+          ).as-bytes,
+          bts-length ↦ ξ.rec-index(
+            Φ̇.number(ξ.bts-start),
+            0,
+            ξ.num-len,
+            Φ̇.txt.sprintf(
+              "Start index + length to slice (%d) is out of string bounds",
+              Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start.plus(ξ.num-len))
+            )
+          ).minus(ξ.bts-start),
+          φ ↦ ξ.num-start.lt(0).if(
+            Φ̇.error(
+              Φ̇.txt.sprintf(
+                "Start index must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-start)
+              )
+            ),
+            ξ.num-len.lt(0).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Length to slice must be >= 0, but was %d", Φ̇.tuple(Φ̇.tuple.empty, ξ.num-len)
+                )
+              ),
+              ξ.num-len.eq(0).if(
+                "", Φ̇.string(ξ.ρ.as-bytes.slice(ξ.bts-start, ξ.bts-length))
+              )
+            )
+          ),
+          increase(index, char-size, accum, result, cause) ↦ ⟦
+            φ ↦ ξ.index.plus(ξ.char-size).gt(ξ.ρ.size).if(
+              Φ̇.error(
+                Φ̇.txt.sprintf(
+                  "Expected %d byte character at %d index, but there are not enough bytes for it: %x",
+                  Φ̇.tuple(
+                    Φ̇.tuple(Φ̇.tuple(Φ̇.tuple.empty, ξ.char-size), ξ.index), ξ.ρ.ρ.as-bytes
+                  )
+                )
+              ),
+              ξ.ρ.rec-index(
+                ξ.index.plus(ξ.char-size), ξ.accum.plus(1), ξ.result, ξ.cause
+              )
+            )
+          ⟧,
+          rec-index(index, accum, result, cause) ↦ ⟦
+            byte ↦ ξ.ρ.ρ.as-bytes.slice(ξ.index, 1),
+            φ ↦ ξ.accum.eq(ξ.result).if(
+              ξ.index,
+              ξ.index.eq(ξ.ρ.size).if(
+                Φ̇.error(ξ.cause),
+                ξ.byte.and(ξ.ρ.pattern-one).eq(ξ.ρ.result-one).if(
+                  ξ.ρ.increase(ξ.index, 1, ξ.accum, ξ.result, ξ.cause),
+                  ξ.byte.and(ξ.ρ.pattern-two).eq(ξ.ρ.result-two).if(
+                    ξ.ρ.increase(ξ.index, 2, ξ.accum, ξ.result, ξ.cause),
+                    ξ.byte.and(ξ.ρ.pattern-three).eq(ξ.ρ.result-three).if(
+                      ξ.ρ.increase(ξ.index, 3, ξ.accum, ξ.result, ξ.cause),
+                      ξ.byte.and(ξ.ρ.pattern-four).eq(ξ.ρ.result-four).if(
+                        ξ.ρ.increase(ξ.index, 4, ξ.accum, ξ.result, ξ.cause),
+                        Φ̇.error(
+                          Φ̇.txt.sprintf(
+                            "Unknown byte format (%x), can't recognize character",
+                            Φ̇.tuple(Φ̇.tuple.empty, ξ.byte)
+                          )
+                        )
+                      )
+                    )
+                  )
+                )
+              )
+            )
+          ⟧
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/true.phi b/data/0.50.0/org/eolang/true.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/true.phi
@@ -0,0 +1,21 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      true() ↦ ⟦
+        φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧),
+        not ↦ Φ̇.false,
+        if(left, right) ↦ ⟦
+          φ ↦ ξ.left
+        ⟧,
+        and(x) ↦ ⟦
+          φ ↦ Φ̇.bytes(⟦ Δ ⤍ 01- ⟧).eq(ξ.x)
+        ⟧,
+        or(x) ↦ ⟦
+          φ ↦ ξ.ρ
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/try.phi b/data/0.50.0/org/eolang/try.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/try.phi
@@ -0,0 +1,11 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      try(main, catch, finally) ↦ ⟦
+        λ ⤍ Lorg_eolang_try
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/tuple.phi b/data/0.50.0/org/eolang/tuple.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/tuple.phi
@@ -0,0 +1,39 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      tuple(head, tail) ↦ ⟦
+        empty() ↦ ⟦
+          length ↦ 0,
+          at(i) ↦ ⟦
+            φ ↦ Φ̇.error("Can't get an object from the empty tuple")
+          ⟧,
+          with(x) ↦ ⟦
+            φ ↦ ξ.ρ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+          ⟧
+        ⟧,
+        length() ↦ ⟦
+          len ↦ Φ̇.dataized(ξ.ρ.head.length.plus(1)).as-bytes,
+          φ ↦ Φ̇.number(ξ.len)
+        ⟧,
+        at(i) ↦ ⟦
+          len ↦ ξ.ρ.length,
+          idx ↦ Φ̇.dataized(ξ.i).as-bytes,
+          index ↦ Φ̇.dataized(0.gt(ξ.idx).if(ξ.len.plus(ξ.idx), ξ.idx)).as-bytes,
+          φ ↦ 0.gt(ξ.index).or(ξ.len.lte(ξ.index)).if(
+            Φ̇.error("Given index is out of tuple bounds"), ξ.at-fast(ξ.ρ, ξ.len)
+          ),
+          at-fast(tup, len) ↦ ⟦
+            φ ↦ ξ.len.plus(-1).gt(ξ.ρ.index).if(
+              ξ.ρ.at-fast(ξ.tup.head, ξ.len.plus(-1)), ξ.tup.tail
+            )
+          ⟧
+        ⟧,
+        with(x) ↦ ⟦
+          φ ↦ ξ.ρ.ρ.tuple(ξ.ρ, ξ.x)
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/txt/sprintf.phi b/data/0.50.0/org/eolang/txt/sprintf.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/txt/sprintf.phi
@@ -0,0 +1,14 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      txt() ↦ ⟦
+        sprintf(format, args) ↦ ⟦
+          λ ⤍ Lorg_eolang_txt_sprintf
+        ⟧,
+        λ ⤍ Package
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/data/0.50.0/org/eolang/while.phi b/data/0.50.0/org/eolang/while.phi
new file mode 100644
--- /dev/null
+++ b/data/0.50.0/org/eolang/while.phi
@@ -0,0 +1,22 @@
+{⟦
+  org() ↦ ⟦
+    eolang() ↦ ⟦
+      while(condition, body) ↦ ⟦
+        φ ↦ ξ.condition(0).as-bool.if(ξ.loop(0), Φ̇.false),
+        loop(index) ↦ ⟦
+          current ↦ ξ.ρ.body(ξ.index),
+          φ ↦ ξ.ρ.condition(ξ.index.plus(1)).as-bool.if(
+            Φ̇.seq(
+              Φ̇.tuple(
+                Φ̇.tuple(Φ̇.tuple.empty, ξ.current), ξ.ρ.loop(ξ.index.plus(1))
+              )
+            ),
+            ξ.current
+          )
+        ⟧
+      ⟧,
+      λ ⤍ Package
+    ⟧,
+    λ ⤍ Package
+  ⟧
+⟧}
diff --git a/eo-phi-normalizer.cabal b/eo-phi-normalizer.cabal
--- a/eo-phi-normalizer.cabal
+++ b/eo-phi-normalizer.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           eo-phi-normalizer
-version:        2.3.0
+version:        3.0.0
 synopsis:       Command line normalizer of 𝜑-calculus expressions.
 description:    Please see the README on GitHub at <https://github.com/objectionary/eo-phi-normalizer#readme>
 homepage:       https://github.com/objectionary/eo-phi-normalizer#readme
@@ -189,6 +189,207 @@
     data/0.41.2/org/eolang/txt/sscanf.phi
     data/0.41.2/org/eolang/txt/text.phi
     data/0.41.2/org/eolang/while.phi
+    data/0.49.1/dependencies.md
+    data/0.49.1/org/eolang/as-phi.phi
+    data/0.49.1/org/eolang/bytes.phi
+    data/0.49.1/org/eolang/cti.phi
+    data/0.49.1/org/eolang/dataized.phi
+    data/0.49.1/org/eolang/error.phi
+    data/0.49.1/org/eolang/false.phi
+    data/0.49.1/org/eolang/fs/dir.phi
+    data/0.49.1/org/eolang/fs/file.phi
+    data/0.49.1/org/eolang/fs/path.phi
+    data/0.49.1/org/eolang/fs/tmpdir.phi
+    data/0.49.1/org/eolang/go.phi
+    data/0.49.1/org/eolang/i16.phi
+    data/0.49.1/org/eolang/i32.phi
+    data/0.49.1/org/eolang/i64.phi
+    data/0.49.1/org/eolang/io/bytes-as-input.phi
+    data/0.49.1/org/eolang/io/console.phi
+    data/0.49.1/org/eolang/io/dead-input.phi
+    data/0.49.1/org/eolang/io/dead-output.phi
+    data/0.49.1/org/eolang/io/input-length.phi
+    data/0.49.1/org/eolang/io/malloc-as-output.phi
+    data/0.49.1/org/eolang/io/stdin.phi
+    data/0.49.1/org/eolang/io/stdout.phi
+    data/0.49.1/org/eolang/io/tee-input.phi
+    data/0.49.1/org/eolang/malloc.phi
+    data/0.49.1/org/eolang/math/angle.phi
+    data/0.49.1/org/eolang/math/e.phi
+    data/0.49.1/org/eolang/math/integral.phi
+    data/0.49.1/org/eolang/math/numbers.phi
+    data/0.49.1/org/eolang/math/pi.phi
+    data/0.49.1/org/eolang/math/random.phi
+    data/0.49.1/org/eolang/math/real.phi
+    data/0.49.1/org/eolang/nan.phi
+    data/0.49.1/org/eolang/negative-infinity.phi
+    data/0.49.1/org/eolang/net/socket.phi
+    data/0.49.1/org/eolang/number.phi
+    data/0.49.1/org/eolang/positive-infinity.phi
+    data/0.49.1/org/eolang/rust.phi
+    data/0.49.1/org/eolang/seq.phi
+    data/0.49.1/org/eolang/string.phi
+    data/0.49.1/org/eolang/structs/bytes-as-array.phi
+    data/0.49.1/org/eolang/structs/hash-code-of.phi
+    data/0.49.1/org/eolang/structs/list.phi
+    data/0.49.1/org/eolang/structs/map.phi
+    data/0.49.1/org/eolang/structs/range-of-ints.phi
+    data/0.49.1/org/eolang/structs/range.phi
+    data/0.49.1/org/eolang/structs/set.phi
+    data/0.49.1/org/eolang/switch.phi
+    data/0.49.1/org/eolang/sys/getenv.phi
+    data/0.49.1/org/eolang/sys/line-separator.phi
+    data/0.49.1/org/eolang/sys/os.phi
+    data/0.49.1/org/eolang/sys/posix.phi
+    data/0.49.1/org/eolang/sys/win32.phi
+    data/0.49.1/org/eolang/true.phi
+    data/0.49.1/org/eolang/try.phi
+    data/0.49.1/org/eolang/tuple.phi
+    data/0.49.1/org/eolang/txt/regex.phi
+    data/0.49.1/org/eolang/txt/sprintf.phi
+    data/0.49.1/org/eolang/txt/sscanf.phi
+    data/0.49.1/org/eolang/txt/text.phi
+    data/0.49.1/org/eolang/while.phi
+    data/0.49.3/dependencies.md
+    data/0.49.3/org/eolang/as-phi.phi
+    data/0.49.3/org/eolang/bytes.phi
+    data/0.49.3/org/eolang/cti.phi
+    data/0.49.3/org/eolang/dataized.phi
+    data/0.49.3/org/eolang/error.phi
+    data/0.49.3/org/eolang/false.phi
+    data/0.49.3/org/eolang/fs/dir.phi
+    data/0.49.3/org/eolang/fs/file.phi
+    data/0.49.3/org/eolang/fs/path.phi
+    data/0.49.3/org/eolang/fs/tmpdir.phi
+    data/0.49.3/org/eolang/go.phi
+    data/0.49.3/org/eolang/i16.phi
+    data/0.49.3/org/eolang/i32.phi
+    data/0.49.3/org/eolang/i64.phi
+    data/0.49.3/org/eolang/io/bytes-as-input.phi
+    data/0.49.3/org/eolang/io/console.phi
+    data/0.49.3/org/eolang/io/dead-input.phi
+    data/0.49.3/org/eolang/io/dead-output.phi
+    data/0.49.3/org/eolang/io/input-length.phi
+    data/0.49.3/org/eolang/io/malloc-as-output.phi
+    data/0.49.3/org/eolang/io/stdin.phi
+    data/0.49.3/org/eolang/io/stdout.phi
+    data/0.49.3/org/eolang/io/tee-input.phi
+    data/0.49.3/org/eolang/malloc.phi
+    data/0.49.3/org/eolang/math/angle.phi
+    data/0.49.3/org/eolang/math/e.phi
+    data/0.49.3/org/eolang/math/integral.phi
+    data/0.49.3/org/eolang/math/numbers.phi
+    data/0.49.3/org/eolang/math/pi.phi
+    data/0.49.3/org/eolang/math/random.phi
+    data/0.49.3/org/eolang/math/real.phi
+    data/0.49.3/org/eolang/nan.phi
+    data/0.49.3/org/eolang/negative-infinity.phi
+    data/0.49.3/org/eolang/net/socket.phi
+    data/0.49.3/org/eolang/number.phi
+    data/0.49.3/org/eolang/positive-infinity.phi
+    data/0.49.3/org/eolang/seq.phi
+    data/0.49.3/org/eolang/string.phi
+    data/0.49.3/org/eolang/structs/bytes-as-array.phi
+    data/0.49.3/org/eolang/structs/hash-code-of.phi
+    data/0.49.3/org/eolang/structs/list.phi
+    data/0.49.3/org/eolang/structs/map.phi
+    data/0.49.3/org/eolang/structs/range-of-ints.phi
+    data/0.49.3/org/eolang/structs/range.phi
+    data/0.49.3/org/eolang/structs/set.phi
+    data/0.49.3/org/eolang/switch.phi
+    data/0.49.3/org/eolang/sys/getenv.phi
+    data/0.49.3/org/eolang/sys/line-separator.phi
+    data/0.49.3/org/eolang/sys/os.phi
+    data/0.49.3/org/eolang/sys/posix.phi
+    data/0.49.3/org/eolang/sys/win32.phi
+    data/0.49.3/org/eolang/true.phi
+    data/0.49.3/org/eolang/try.phi
+    data/0.49.3/org/eolang/tuple.phi
+    data/0.49.3/org/eolang/txt/regex.phi
+    data/0.49.3/org/eolang/txt/sprintf.phi
+    data/0.49.3/org/eolang/txt/sscanf.phi
+    data/0.49.3/org/eolang/txt/text.phi
+    data/0.49.3/org/eolang/while.phi
+    data/0.49.4/dependencies.md
+    data/0.49.4/org/eolang/bytes.phi
+    data/0.49.4/org/eolang/cti.phi
+    data/0.49.4/org/eolang/dataized.phi
+    data/0.49.4/org/eolang/error.phi
+    data/0.49.4/org/eolang/false.phi
+    data/0.49.4/org/eolang/fs/dir.phi
+    data/0.49.4/org/eolang/fs/file.phi
+    data/0.49.4/org/eolang/fs/path.phi
+    data/0.49.4/org/eolang/fs/tmpdir.phi
+    data/0.49.4/org/eolang/go.phi
+    data/0.49.4/org/eolang/i16.phi
+    data/0.49.4/org/eolang/i32.phi
+    data/0.49.4/org/eolang/i64.phi
+    data/0.49.4/org/eolang/io/bytes-as-input.phi
+    data/0.49.4/org/eolang/io/console.phi
+    data/0.49.4/org/eolang/io/dead-input.phi
+    data/0.49.4/org/eolang/io/dead-output.phi
+    data/0.49.4/org/eolang/io/input-length.phi
+    data/0.49.4/org/eolang/io/malloc-as-output.phi
+    data/0.49.4/org/eolang/io/stdin.phi
+    data/0.49.4/org/eolang/io/stdout.phi
+    data/0.49.4/org/eolang/io/tee-input.phi
+    data/0.49.4/org/eolang/malloc.phi
+    data/0.49.4/org/eolang/math/angle.phi
+    data/0.49.4/org/eolang/math/e.phi
+    data/0.49.4/org/eolang/math/integral.phi
+    data/0.49.4/org/eolang/math/numbers.phi
+    data/0.49.4/org/eolang/math/pi.phi
+    data/0.49.4/org/eolang/math/random.phi
+    data/0.49.4/org/eolang/math/real.phi
+    data/0.49.4/org/eolang/nan.phi
+    data/0.49.4/org/eolang/negative-infinity.phi
+    data/0.49.4/org/eolang/net/socket.phi
+    data/0.49.4/org/eolang/number.phi
+    data/0.49.4/org/eolang/positive-infinity.phi
+    data/0.49.4/org/eolang/seq.phi
+    data/0.49.4/org/eolang/string.phi
+    data/0.49.4/org/eolang/structs/bytes-as-array.phi
+    data/0.49.4/org/eolang/structs/hash-code-of.phi
+    data/0.49.4/org/eolang/structs/list.phi
+    data/0.49.4/org/eolang/structs/map.phi
+    data/0.49.4/org/eolang/structs/range-of-ints.phi
+    data/0.49.4/org/eolang/structs/range.phi
+    data/0.49.4/org/eolang/structs/set.phi
+    data/0.49.4/org/eolang/switch.phi
+    data/0.49.4/org/eolang/sys/getenv.phi
+    data/0.49.4/org/eolang/sys/line-separator.phi
+    data/0.49.4/org/eolang/sys/os.phi
+    data/0.49.4/org/eolang/sys/posix.phi
+    data/0.49.4/org/eolang/sys/win32.phi
+    data/0.49.4/org/eolang/true.phi
+    data/0.49.4/org/eolang/try.phi
+    data/0.49.4/org/eolang/tuple.phi
+    data/0.49.4/org/eolang/txt/regex.phi
+    data/0.49.4/org/eolang/txt/sprintf.phi
+    data/0.49.4/org/eolang/txt/sscanf.phi
+    data/0.49.4/org/eolang/txt/text.phi
+    data/0.49.4/org/eolang/while.phi
+    data/0.50.0/dependencies.md
+    data/0.50.0/org/eolang/bytes.phi
+    data/0.50.0/org/eolang/dataized.phi
+    data/0.50.0/org/eolang/error.phi
+    data/0.50.0/org/eolang/false.phi
+    data/0.50.0/org/eolang/i16.phi
+    data/0.50.0/org/eolang/i32.phi
+    data/0.50.0/org/eolang/i64.phi
+    data/0.50.0/org/eolang/io/dead-input.phi
+    data/0.50.0/org/eolang/io/dead-output.phi
+    data/0.50.0/org/eolang/nan.phi
+    data/0.50.0/org/eolang/negative-infinity.phi
+    data/0.50.0/org/eolang/number.phi
+    data/0.50.0/org/eolang/positive-infinity.phi
+    data/0.50.0/org/eolang/seq.phi
+    data/0.50.0/org/eolang/string.phi
+    data/0.50.0/org/eolang/true.phi
+    data/0.50.0/org/eolang/try.phi
+    data/0.50.0/org/eolang/tuple.phi
+    data/0.50.0/org/eolang/txt/sprintf.phi
+    data/0.50.0/org/eolang/while.phi
     test/eo/phi/rules/new.yaml
     test/eo/phi/rules/streams.yaml
     test/eo/phi/rules/yegor.yaml
@@ -223,6 +424,8 @@
       Language.EO.Phi.Pipeline.Dataize.PrintConfigs
       Language.EO.Phi.Pipeline.EOTests.Data
       Language.EO.Phi.Pipeline.EOTests.PrepareTests
+      Language.EO.Phi.Preprocess
+      Language.EO.Phi.Pretty
       Language.EO.Phi.Report.Data
       Language.EO.Phi.Report.Html
       Language.EO.Phi.Rules.Common
@@ -234,7 +437,6 @@
       Language.EO.Phi.Syntax.Abs
       Language.EO.Phi.Syntax.Lex
       Language.EO.Phi.Syntax.Par
-      Language.EO.Phi.Syntax.Print
       Language.EO.Phi.TH
       Language.EO.Phi.ToLaTeX
       Language.EO.Test.Yaml
@@ -270,8 +472,12 @@
     , hspec
     , hspec-core
     , lens
+    , megaparsec
     , mtl
+    , parser-combinators
+    , prettyprinter
     , regex-compat
+    , replace-megaparsec
     , scientific
     , template-haskell
     , text
@@ -316,9 +522,13 @@
     , hspec
     , hspec-core
     , lens
+    , megaparsec
     , mtl
     , optparse-applicative
+    , parser-combinators
+    , prettyprinter
     , regex-compat
+    , replace-megaparsec
     , scientific
     , template-haskell
     , text
@@ -345,6 +555,8 @@
       Language.EO.Phi.Pipeline.Dataize.PrintConfigs
       Language.EO.Phi.Pipeline.EOTests.Data
       Language.EO.Phi.Pipeline.EOTests.PrepareTests
+      Language.EO.Phi.Preprocess
+      Language.EO.Phi.Pretty
       Language.EO.Phi.Report.Data
       Language.EO.Phi.Report.Html
       Language.EO.Phi.Rules.Common
@@ -356,7 +568,6 @@
       Language.EO.Phi.Syntax.Abs
       Language.EO.Phi.Syntax.Lex
       Language.EO.Phi.Syntax.Par
-      Language.EO.Phi.Syntax.Print
       Language.EO.Phi.TH
       Language.EO.Phi.ToLaTeX
       Language.EO.Test.Yaml
@@ -394,8 +605,12 @@
     , hspec
     , hspec-core
     , lens
+    , megaparsec
     , mtl
+    , parser-combinators
+    , prettyprinter
     , regex-compat
+    , replace-megaparsec
     , scientific
     , template-haskell
     , text
@@ -449,8 +664,12 @@
     , hspec-core
     , hspec-discover
     , lens
+    , megaparsec
     , mtl
+    , parser-combinators
+    , prettyprinter
     , regex-compat
+    , replace-megaparsec
     , scientific
     , template-haskell
     , text
diff --git a/grammar/EO/Phi/Syntax.cf b/grammar/EO/Phi/Syntax.cf
--- a/grammar/EO/Phi/Syntax.cf
+++ b/grammar/EO/Phi/Syntax.cf
@@ -39,6 +39,9 @@
 token ObjectMetaId {"!b"} (char - [" \r\n\t,.|':;!-?][}{)(⟧⟦"])* ;
 token BytesMetaId {"!y"} (char - [" \r\n\t,.|':;!-?][}{)(⟧⟦"])* ;
 token MetaFunctionName {"@"} (char - [" \r\n\t,.|':;!-?][}{)(⟧⟦"])* ;
+token IntegerSigned ('-'? digit+) ;
+token DoubleSigned ('-'? digit+ '.' digit+ ('e' '-'? digit+)?) ;
+token StringRaw '"' ((char - ["\"\\"]) | ('\\' ["\"\\tnrfu"]))* '"';
 
 Program. Program ::= "{" "⟦" [Binding] "⟧" "}" ;
 
@@ -48,22 +51,28 @@
 MetaIdObject.   MetaId ::= ObjectMetaId ;
 MetaIdBytes.    MetaId ::= BytesMetaId ;
 
-Formation.         Object ::= "⟦" [Binding] "⟧" ;
-Application.       Object ::= Object "(" [Binding] ")" ;
-ObjectDispatch.    Object ::= Object "." Attribute ;
-GlobalObject.      Object ::= "Φ";
-ThisObject.        Object ::= "ξ";
-Termination.       Object ::= "⊥" ;
-ConstString.       Object ::= String ;
-ConstInt.          Object ::= Integer ;
-ConstFloat.        Object ::= Double ;
-MetaSubstThis.     Object ::= Object "[" "ξ" "↦" Object "]" ;
-MetaContextualize. Object ::= "⌈" Object "," Object "⌉" ;
-MetaObject.        Object ::= ObjectMetaId ;
-MetaTailContext.   Object ::= Object "*" TailMetaId ;
-MetaFunction.      Object ::= MetaFunctionName "(" Object ")" ;
+Formation.          Object ::= "⟦" [Binding] "⟧" ;
+Application.        Object ::= Object "(" [Binding] ")" ;
+ObjectDispatch.     Object ::= Object "." Attribute ;
+GlobalObject.       Object ::= "Φ";
+GlobalObjectPhiOrg. Object ::= "Φ̇";
+ThisObject.         Object ::= "ξ";
+Termination.        Object ::= "⊥" ;
+ConstStringRaw.     Object ::= StringRaw ;
+ConstIntRaw.        Object ::= IntegerSigned ;
+ConstFloatRaw.      Object ::= DoubleSigned ;
+MetaSubstThis.      Object ::= Object "[" "ξ" "↦" Object "]" ;
+MetaContextualize.  Object ::= "⌈" Object "," Object "⌉" ;
+MetaObject.         Object ::= ObjectMetaId ;
+MetaTailContext.    Object ::= Object "*" TailMetaId ;
+MetaFunction.       Object ::= MetaFunctionName "(" Object ")" ;
 
+internal ConstFloat.    Object ::= Double;
+internal ConstInt.      Object ::= Integer;
+internal ConstString.   Object ::= String;
+
 AlphaBinding.       Binding ::= Attribute "↦" Object ;
+AlphaBindingSugar.  Binding ::= Object ;
 EmptyBinding.       Binding ::= Attribute "↦" "∅" ;
 DeltaBinding.       Binding ::= "Δ" "⤍" Bytes ;
 DeltaEmptyBinding.  Binding ::= "Δ" "⤍" "∅" ;
@@ -73,10 +82,13 @@
 separator Binding "," ;
 
 Phi.    Attribute ::= "φ" ;   -- decoratee object
+PhiSugar. Attribute ::= "~" "φ" "(" [LabelId] ")";
 Rho.    Attribute ::= "ρ" ;   -- parent object
 Label.  Attribute ::= LabelId ;
 Alpha.  Attribute ::= AlphaIndex ;
 MetaAttr. Attribute ::= LabelMetaId ;
+AttrSugar. Attribute ::= "~" LabelId "(" [LabelId] ")";
+separator LabelId ",";
 
 -- Additional symbols used as attributes in the rules
 ObjectAttr. RuleAttribute ::= Attribute ;
diff --git a/src/Language/EO/Phi.hs b/src/Language/EO/Phi.hs
--- a/src/Language/EO/Phi.hs
+++ b/src/Language/EO/Phi.hs
@@ -44,7 +44,7 @@
 
 -- | Parse an 'Object' or return a parsing error.
 parseObject :: String -> Either String Phi.Object
-parseObject = Phi.pObject . Phi.myLexer
+parseObject = parseWith Phi.pObject
 
 -- | Parse a 'Program' from a 'String'.
 -- May throw an 'error` if input has a syntactical or lexical errors.
diff --git a/src/Language/EO/Phi/Dataize.hs b/src/Language/EO/Phi/Dataize.hs
--- a/src/Language/EO/Phi/Dataize.hs
+++ b/src/Language/EO/Phi/Dataize.hs
@@ -47,7 +47,9 @@
 desugarAsBytes (Left obj) = case obj of
   ConstString s -> Right (stringToBytes s)
   ConstInt n -> Right (intToBytes (fromInteger n))
+  f@ConstIntRaw{} -> errorExpectedDesugaredObject f
   ConstFloat x -> Right (floatToBytes x)
+  f@ConstFloatRaw{} -> errorExpectedDesugaredObject f
   _ -> Left obj
 desugarAsBytes (Right bytes) = Right bytes
 
@@ -65,7 +67,7 @@
 
 -- | Perform one step of dataization to the object (if possible).
 dataizeStep :: Context -> Object -> (Context, Either Object Bytes)
-dataizeStep ctx obj = snd $ head $ runChain (dataizeStepChain obj) ctx -- FIXME: head is bad
+dataizeStep ctx obj = snd $ head $ runChain (dataizeStepChain DataizeAll obj) ctx -- FIXME: head is bad
 
 dataizeStep' :: Context -> Object -> Either Object Bytes
 dataizeStep' ctx obj = snd (dataizeStep ctx obj)
@@ -75,12 +77,15 @@
 dataizeRecursively ctx obj = snd $ dataizeRecursivelyChain' ctx obj
 
 dataizeStepChain' :: Context -> Object -> ([LogEntry (Either Object Bytes)], Either Object Bytes)
-dataizeStepChain' ctx obj = snd <$> head (runChain (dataizeStepChain obj) ctx) -- FIXME: head is bad
+dataizeStepChain' ctx obj = snd <$> head (runChain (dataizeStepChain DataizeAll obj) ctx) -- FIXME: head is bad
 
+data DataizeStepMode = DataizeOnlyLambda | DataizeAll
+
 -- | Perform one step of dataization to the object (if possible), reporting back individiual steps.
-dataizeStepChain :: Object -> DataizeChain (Context, Either Object Bytes)
-dataizeStepChain obj@(Formation bs)
-  | Just (DeltaBinding bytes) <- listToMaybe [b | b@(DeltaBinding _) <- bs]
+dataizeStepChain :: DataizeStepMode -> Object -> DataizeChain (Context, Either Object Bytes)
+dataizeStepChain mode obj@(Formation bs)
+  | DataizeAll <- mode
+  , Just (DeltaBinding bytes) <- listToMaybe [b | b@(DeltaBinding _) <- bs]
   , not hasEmpty = do
       logStep "Found bytes" (AsBytes bytes)
       ctx <- getContext
@@ -102,7 +107,8 @@
             Just ((obj', _state), _alts) -> do
               ctx <- getContext
               return (ctx, AsObject obj')
-  | Just (AlphaBinding Phi decoratee) <- listToMaybe [b | b@(AlphaBinding Phi _) <- bs]
+  | DataizeAll <- mode
+  , Just (AlphaBinding Phi decoratee) <- listToMaybe [b | b@(AlphaBinding Phi _) <- bs]
   , not hasEmpty = do
       let decoratee' = substThis obj decoratee
       logStep "Dataizing inside phi" (AsObject decoratee')
@@ -119,22 +125,22 @@
   isEmpty _ = False
   hasEmpty = any isEmpty bs
 -- IMPORTANT: dataize the object being copied IF normalization is stuck on it!
-dataizeStepChain (Application obj bindings) = incLogLevel $ do
+dataizeStepChain _mode (Application obj bindings) = incLogLevel $ do
   logStep "Dataizing inside application" (AsObject obj)
   modifyContext (\c -> c{dataizePackage = False}) $ do
-    (ctx, obj') <- dataizeStepChain obj
+    (ctx, obj') <- dataizeStepChain DataizeOnlyLambda obj
     case obj' of
       Left obj'' -> return (ctx, AsObject (obj'' `Application` bindings))
       Right bytes -> return (ctx, AsObject (Formation [DeltaBinding bytes] `Application` bindings))
 -- IMPORTANT: dataize the object being dispatched IF normalization is stuck on it!
-dataizeStepChain (ObjectDispatch obj attr) = incLogLevel $ do
+dataizeStepChain _mode (ObjectDispatch obj attr) = incLogLevel $ do
   logStep "Dataizing inside dispatch" (AsObject obj)
   modifyContext (\c -> c{dataizePackage = False}) $ do
-    (ctx, obj') <- dataizeStepChain obj
+    (ctx, obj') <- dataizeStepChain DataizeOnlyLambda obj
     case obj' of
       Left obj'' -> return (ctx, AsObject (obj'' `ObjectDispatch` attr))
       Right bytes -> return (ctx, AsObject (Formation [DeltaBinding bytes] `ObjectDispatch` attr))
-dataizeStepChain obj = do
+dataizeStepChain _mode obj = do
   logStep "Nothing to dataize" (AsObject obj)
   ctx <- getContext
   return (ctx, AsObject obj)
@@ -166,7 +172,7 @@
       Just (normObj, _alternatives)
         | normObj == obj && normalizeRequired -> return (AsObject obj)
         | otherwise -> do
-            (ctx', step) <- dataizeStepChain normObj
+            (ctx', step) <- dataizeStepChain DataizeAll normObj
             case step of
               (AsObject stillObj)
                 | stillObj == normObj && ctx `sameContext` ctx' -> do
@@ -250,6 +256,49 @@
       fail (name <> ": Couldn't find bytes in RHS: " <> printTree (hideRho r))
   return (result, ())
 
+evaluatePartialBinaryDataizationFunChain ::
+  -- | How to convert the result back to bytes
+  (res -> Bytes) ->
+  -- | How to interpret the bytes in terms of the given data type
+  (Bytes -> a) ->
+  -- | How to wrap the bytes in an object
+  (Bytes -> Object) ->
+  -- | Extract the 1st argument to be dataized
+  (Object -> Object) ->
+  -- | Extract the 2nd argument to be dataized
+  (Object -> Object) ->
+  -- | A binary function on the argument
+  (a -> a -> Maybe res) ->
+  -- | Name of the atom.
+  String ->
+  Object ->
+  EvaluationState ->
+  DataizeChain (Object, EvaluationState)
+evaluatePartialBinaryDataizationFunChain resultToBytes bytesToParam wrapBytes arg1 arg2 func name obj _state = do
+  let lhsArg = arg1 obj
+  let rhsArg = arg2 obj
+  lhs <- incLogLevel $ do
+    logStep "Evaluating LHS" (AsObject lhsArg)
+    dataizeRecursivelyChain True lhsArg
+  rhs <- incLogLevel $ do
+    logStep "Evaluating RHS" (AsObject rhsArg)
+    dataizeRecursivelyChain True rhsArg
+  result <- case (lhs, rhs) of
+    (AsBytes l, AsBytes r) -> do
+      case resultToBytes <$> bytesToParam l `func` bytesToParam r of
+        Nothing -> fail (name <> ": throws an error")
+        Just bytes -> do
+          let resultObj = wrapBytes bytes
+          logStep "Evaluated function" (AsObject resultObj)
+          return resultObj
+    (AsObject _l, AsObject _r) ->
+      fail (name <> ": Couldn't find bytes in both LHS and RHS")
+    (AsObject l, _) -> do
+      fail (name <> ": Couldn't find bytes in LHS: " <> printTree (hideRho l))
+    (_, AsObject r) -> do
+      fail (name <> ": Couldn't find bytes in RHS: " <> printTree (hideRho r))
+  return (result, ())
+
 -- | Unary functions operate on the given object without any additional parameters
 evaluateUnaryDataizationFunChain ::
   -- | How to convert the result back to bytes
@@ -272,6 +321,9 @@
 -- This should maybe get converted to a type class and some instances?
 evaluateIntIntIntFunChain :: (Int -> Int -> Int) -> String -> Object -> EvaluationState -> DataizeChain (Object, EvaluationState)
 evaluateIntIntIntFunChain = evaluateBinaryDataizationFunChain intToBytes bytesToInt wrapBytesInConstInt extractRho (extractLabel "x")
+
+evaluateIntIntMaybeIntFunChain :: (Int -> Int -> Maybe Int) -> String -> Object -> EvaluationState -> DataizeChain (Object, EvaluationState)
+evaluateIntIntMaybeIntFunChain = evaluatePartialBinaryDataizationFunChain intToBytes bytesToInt wrapBytesInConstInt extractRho (extractLabel "x")
 
 evaluateIntIntBoolFunChain :: (Int -> Int -> Bool) -> String -> Object -> EvaluationState -> DataizeChain (Object, EvaluationState)
 evaluateIntIntBoolFunChain = evaluateBinaryDataizationFunChain boolToBytes bytesToInt wrapBytesAsBool extractRho (extractLabel "x")
diff --git a/src/Language/EO/Phi/Dataize/Atoms.hs b/src/Language/EO/Phi/Dataize/Atoms.hs
--- a/src/Language/EO/Phi/Dataize/Atoms.hs
+++ b/src/Language/EO/Phi/Dataize/Atoms.hs
@@ -34,11 +34,17 @@
 
 knownAtomsList :: [(String, String -> Object -> EvaluationState -> DataizeChain (Object, EvaluationState))]
 knownAtomsList =
+  -- [ ("Lorg_eolang_as_phi", _)
   [ ("Lorg_eolang_int_gt", evaluateIntIntBoolFunChain (>))
   , ("Lorg_eolang_int_plus", evaluateIntIntIntFunChain (+))
   , ("Lorg_eolang_int_times", evaluateIntIntIntFunChain (*))
   , ("Lorg_eolang_int_div", evaluateIntIntIntFunChain quot)
+  , ("Lorg_eolang_bytes_and", evaluateBytesBytesBytesFunChain (.&.))
+  , ("Lorg_eolang_bytes_concat", evaluateBinaryDataizationFunChain id id wrapBytesInBytes extractRho (extractLabel "b") concatBytes)
   , ("Lorg_eolang_bytes_eq", evaluateBinaryDataizationFunChain boolToBytes bytesToInt wrapBytesAsBool extractRho (extractLabel "b") (==))
+  , ("Lorg_eolang_bytes_not", evaluateBytesBytesFunChain complement)
+  , ("Lorg_eolang_bytes_or", evaluateBytesBytesBytesFunChain (.|.))
+  , ("Lorg_eolang_bytes_right", evaluateBinaryDataizationFunChain intToBytes bytesToInt wrapBytesInBytes extractRho (extractLabel "x") (\x i -> shift x (-i)))
   ,
     ( "Lorg_eolang_bytes_size"
     , let f = evaluateUnaryDataizationFunChain intToBytes id wrapBytesInBytes extractRho (\(Bytes bytes) -> length (words (map dashToSpace bytes)))
@@ -54,24 +60,71 @@
         bytes <- case thisStr of
           AsBytes bytes -> pure bytes
           AsObject _ -> fail "Couldn't find bytes"
-        evaluateBinaryDataizationFunChain id bytesToInt wrapBytesInBytes (extractLabel "start") (extractLabel "len") (sliceBytes bytes) name obj state
+        evaluateBinaryDataizationFunChain id bytesToFloat wrapBytesInBytes (extractLabel "start") (extractLabel "len") (\start len -> sliceBytes bytes (floor start) (floor len)) name obj state
     )
-  , ("Lorg_eolang_bytes_and", evaluateBytesBytesBytesFunChain (.&.))
-  , ("Lorg_eolang_bytes_or", evaluateBytesBytesBytesFunChain (.|.))
   , ("Lorg_eolang_bytes_xor", evaluateBytesBytesBytesFunChain (.^.))
-  , ("Lorg_eolang_bytes_not", evaluateBytesBytesFunChain complement)
-  , ("Lorg_eolang_bytes_right", evaluateBinaryDataizationFunChain intToBytes bytesToInt wrapBytesInBytes extractRho (extractLabel "x") (\x i -> shift x (-i)))
-  , ("Lorg_eolang_bytes_concat", evaluateBinaryDataizationFunChain id id wrapBytesInBytes extractRho (extractLabel "b") concatBytes)
+  , -- deprecated
+    ("Lorg_eolang_dataized", evaluateUnaryDataizationFunChain id id wrapBytesInBytes (extractLabel "target") id)
+  , -- , ("Lorg_eolang_cage_encaged_encage", _)
+    -- , ("Lorg_eolang_cage_encaged_φ", _)
+    -- , ("Lorg_eolang_cage_φ", _)
+    ("Lorg_eolang_error", evaluateUnaryDataizationFunChain stringToBytes bytesToString wrapBytesInBytes (extractLabel "message") error)
   , -- float
+    -- deprecated
     ("Lorg_eolang_float_gt", evaluateBinaryDataizationFunChain boolToBytes bytesToFloat wrapBytesInBytes extractRho (extractLabel "x") (>))
-  , ("Lorg_eolang_float_times", evaluateFloatFloatFloatFunChain (*))
-  , ("Lorg_eolang_float_plus", evaluateFloatFloatFloatFunChain (+))
-  , ("Lorg_eolang_float_div", evaluateFloatFloatFloatFunChain (/))
-  , ("Lorg_eolang_float_gt", evaluateBinaryDataizationFunChain boolToBytes bytesToFloat wrapBytesInBytes extractRho (extractLabel "x") (>))
-  , ("Lorg_eolang_float_times", evaluateFloatFloatFloatFunChain (*))
-  , ("Lorg_eolang_float_plus", evaluateFloatFloatFloatFunChain (+))
-  , ("Lorg_eolang_float_div", evaluateFloatFloatFloatFunChain (/))
-  , -- string
+  , -- deprecated
+    ("Lorg_eolang_float_times", evaluateFloatFloatFloatFunChain (*))
+  , -- deprecated
+    ("Lorg_eolang_float_plus", evaluateFloatFloatFloatFunChain (+))
+  , -- deprecated
+    ("Lorg_eolang_float_div", evaluateFloatFloatFloatFunChain (/))
+  , -- deprecated
+    ("Lorg_eolang_float_gt", evaluateBinaryDataizationFunChain boolToBytes bytesToFloat wrapBytesInBytes extractRho (extractLabel "x") (>))
+  , -- deprecated
+    ("Lorg_eolang_float_times", evaluateFloatFloatFloatFunChain (*))
+  , -- deprecated
+    ("Lorg_eolang_float_plus", evaluateFloatFloatFloatFunChain (+))
+  , -- deprecated
+    ("Lorg_eolang_float_div", evaluateFloatFloatFloatFunChain (/))
+  , -- , ("Lorg_eolang_fs_dir_made_mkdir", _)
+    -- , ("Lorg_eolang_fs_dir_tmpfile_touch", _)
+    -- , ("Lorg_eolang_fs_dir_walk", _)
+    -- , ("Lorg_eolang_fs_file_deleted_delete", _)
+    -- , ("Lorg_eolang_fs_file_exists", _)
+    -- , ("Lorg_eolang_fs_file_is_directory", _)
+    -- , ("Lorg_eolang_fs_file_moved_move", _)
+    -- , ("Lorg_eolang_fs_file_open_file_stream_read_read_bytes", _)
+    -- , ("Lorg_eolang_fs_file_open_file_stream_write_written_bytes", _)
+    -- , ("Lorg_eolang_fs_file_open_process_file", _)
+    -- , ("Lorg_eolang_fs_file_size", _)
+    -- , ("Lorg_eolang_fs_file_touched_touch", _)
+    ("Lorg_eolang_i16_as_i32", evaluateUnaryDataizationFunChain int16ToBytes bytesToInt64 wrapBytesInConstInt extractRho fromIntegral)
+  , ("Lorg_eolang_i32_as_i64", evaluateUnaryDataizationFunChain int32ToBytes bytesToInt64 wrapBytesInConstInt extractRho fromIntegral)
+  , ("Lorg_eolang_i64_as_number", evaluateUnaryDataizationFunChain floatToBytes bytesToInt64 wrapBytesInConstInt extractRho fromIntegral)
+  , ("Lorg_eolang_i64_div", evaluateIntIntMaybeIntFunChain (\x y -> if y == 0 then Nothing else Just (x `quot` y)))
+  , ("Lorg_eolang_i64_gt", evaluateIntIntBoolFunChain (>))
+  , ("Lorg_eolang_i64_plus", evaluateIntIntIntFunChain (+))
+  , ("Lorg_eolang_i64_times", evaluateIntIntIntFunChain (*))
+  , -- , ("Lorg_eolang_malloc_of_allocated_read", _)
+    -- , ("Lorg_eolang_malloc_of_allocated_resize", _)
+    -- , ("Lorg_eolang_malloc_of_allocated_size", _)
+    -- , ("Lorg_eolang_malloc_of_allocated_write", _)
+    -- , ("Lorg_eolang_malloc_of_φ", _)
+    ("Lorg_eolang_math_angle_cos", evaluateUnaryDataizationFunChain floatToBytes bytesToFloat wrapBytesInConstFloat extractRho cos)
+  , ("Lorg_eolang_math_angle_sin", evaluateUnaryDataizationFunChain floatToBytes bytesToFloat wrapBytesInConstFloat extractRho sin)
+  , ("Lorg_eolang_math_real_acos", evaluateUnaryDataizationFunChain floatToBytes bytesToFloat wrapBytesInConstFloat extractRho acos)
+  , ("Lorg_eolang_math_real_asin", evaluateUnaryDataizationFunChain floatToBytes bytesToFloat wrapBytesInConstFloat extractRho asin)
+  , ("Lorg_eolang_math_real_ln", evaluateUnaryDataizationFunChain floatToBytes bytesToFloat wrapBytesInConstFloat extractRho log)
+  , ("Lorg_eolang_math_real_pow", evaluateFloatFloatFloatFunChain (**))
+  , ("Lorg_eolang_math_real_sqrt", evaluateUnaryDataizationFunChain floatToBytes bytesToFloat wrapBytesInConstFloat extractRho sqrt)
+  , ("Lorg_eolang_number_as_i64", evaluateUnaryDataizationFunChain int64ToBytes bytesToFloat wrapBytesInConstInt extractRho round)
+  , ("Lorg_eolang_number_div", evaluateFloatFloatFloatFunChain (/))
+  , ("Lorg_eolang_number_floor", evaluateUnaryDataizationFunChain int64ToBytes bytesToFloat wrapBytesInConstInt extractRho floor)
+  , ("Lorg_eolang_number_gt", evaluateBinaryDataizationFunChain boolToBytes bytesToFloat wrapBytesInBytes extractRho (extractLabel "x") (>))
+  , ("Lorg_eolang_number_plus", evaluateFloatFloatFloatFunChain (+))
+  , ("Lorg_eolang_number_times", evaluateFloatFloatFloatFunChain (*))
+  , -- , ("Lorg_eolang_rust", _)
+    -- string
     ("Lorg_eolang_string_length", evaluateUnaryDataizationFunChain intToBytes bytesToString wrapBytesInConstInt extractRho length)
   ,
     ( "Lorg_eolang_string_slice"
@@ -80,12 +133,18 @@
         string <- case thisStr of
           AsBytes bytes -> pure $ bytesToString bytes
           AsObject _ -> fail "Couldn't find bytes"
-        evaluateBinaryDataizationFunChain stringToBytes bytesToInt wrapBytesInConstString (extractLabel "start") (extractLabel "len") (\start len -> take len (drop start string)) name obj state
+        evaluateBinaryDataizationFunChain stringToBytes bytesToFloat wrapBytesInConstString (extractLabel "start") (extractLabel "len") (\start len -> take (floor len) (drop (floor start) string)) name obj state
     )
   , -- others
-    ("Lorg_eolang_dataized", evaluateUnaryDataizationFunChain id id wrapBytesInBytes (extractLabel "target") id)
-  , ("Lorg_eolang_error", evaluateUnaryDataizationFunChain stringToBytes bytesToString wrapBytesInBytes (extractLabel "message") error)
-  ,
+    -- , ("Lorg_eolang_sys_os_name", _)
+    -- , ("Lorg_eolang_sys_posix_φ", _)
+    -- , ("Lorg_eolang_sys_win32_φ", _)
+    -- , ("Lorg_eolang_try", _)
+    -- , ("Lorg_eolang_txt_regex_compiled", _)
+    -- , ("Lorg_eolang_txt_regex_pattern_match_matched_from_index", _)
+    -- , ("Lorg_eolang_txt_sprintf", _)
+    -- , ("Lorg_eolang_txt_sscanf", _)
+
     ( "Package"
     , let
         f _name obj@(Formation bindings) = do
diff --git a/src/Language/EO/Phi/Dependencies.hs b/src/Language/EO/Phi/Dependencies.hs
--- a/src/Language/EO/Phi/Dependencies.hs
+++ b/src/Language/EO/Phi/Dependencies.hs
@@ -37,6 +37,7 @@
 bindingAttr LambdaBinding{} = Just (Alpha (AlphaIndex "λ"))
 bindingAttr MetaBindings{} = Nothing
 bindingAttr MetaDeltaBinding{} = Nothing
+bindingAttr b@(AlphaBindingSugar{}) = errorExpectedDesugaredBinding b
 
 zipBindings :: [Binding] -> [Binding] -> ([Binding], [(Binding, Binding)])
 zipBindings xs ys = (xs' <> ys', collisions)
diff --git a/src/Language/EO/Phi/Normalize.hs b/src/Language/EO/Phi/Normalize.hs
--- a/src/Language/EO/Phi/Normalize.hs
+++ b/src/Language/EO/Phi/Normalize.hs
@@ -38,7 +38,7 @@
 import Data.Generics.Labels ()
 import GHC.Generics (Generic)
 import Language.EO.Phi.Rules.Common (lookupBinding, objectBindings)
-import Language.EO.Phi.Syntax (desugar)
+import Language.EO.Phi.Syntax (desugar, errorExpectedDesugaredObject)
 import Language.EO.Phi.Syntax.Abs
 
 data Context = Context
@@ -71,6 +71,7 @@
   Application object bindings -> peelObject object `followedBy` ActionApplication bindings
   ObjectDispatch object attr -> peelObject object `followedBy` ActionDispatch attr
   GlobalObject -> PeeledObject HeadGlobal []
+  obj@GlobalObjectPhiOrg -> peelObject (desugar obj)
   ThisObject -> PeeledObject HeadThis []
   Termination -> PeeledObject HeadTermination []
   MetaObject _ -> PeeledObject HeadTermination []
@@ -79,8 +80,11 @@
   MetaSubstThis{} -> error "impossible"
   MetaContextualize{} -> error "impossible"
   obj@ConstString{} -> peelObject (desugar obj)
+  obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstInt{} -> peelObject (desugar obj)
+  obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstFloat{} -> peelObject (desugar obj)
+  obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
  where
   followedBy (PeeledObject object actions) action = PeeledObject object (actions ++ [action])
 
diff --git a/src/Language/EO/Phi/Preprocess.hs b/src/Language/EO/Phi/Preprocess.hs
new file mode 100644
--- /dev/null
+++ b/src/Language/EO/Phi/Preprocess.hs
@@ -0,0 +1,80 @@
+{- FOURMOLU_DISABLE -}
+-- The MIT License (MIT)
+
+-- Copyright (c) 2016-2024 Objectionary.com
+
+-- Permission is hereby granted, free of charge, to any person obtaining a copy
+-- of this software and associated documentation files (the "Software"), to deal
+-- in the Software without restriction, including without limitation the rights
+-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+-- copies of the Software, and to permit persons to whom the Software is
+-- furnished to do so, subject to the following conditions:
+
+-- The above copyright notice and this permission notice shall be included
+-- in all copies or substantial portions of the Software.
+
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+-- FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+-- SOFTWARE.
+{- FOURMOLU_ENABLE -}
+{-# LANGUAGE BlockArguments #-}
+
+module Language.EO.Phi.Preprocess where
+
+import Control.Monad (void)
+import Data.Void (Void)
+import Replace.Megaparsec (splitCap)
+import Text.Megaparsec (MonadParsec (..), Parsec, Stream (..), between, match, sepBy)
+import Text.Megaparsec.Byte.Lexer qualified as L
+import Text.Megaparsec.Char (lowerChar, space)
+
+symbol :: String -> Parser String
+symbol = L.symbol space
+
+lexeme :: Parser a -> Parser a
+lexeme = L.lexeme space
+
+type Parser = Parsec Void String
+
+parseLabelId :: Parser ()
+parseLabelId = lexeme do
+  void lowerChar
+  void $ takeWhileP (Just "LabelId") (`notElem` " \r\n\t,.|':;!?][}{)(⟧⟦")
+
+parseBindingArrow :: Parser ()
+parseBindingArrow = void $ symbol "↦"
+
+parseAlphaAttr :: Parser ()
+parseAlphaAttr = do
+  void parseLabelId
+  void $ between (symbol "(") (symbol ")") (sepBy parseLabelId (symbol ","))
+
+parseAlphaBindingSugar :: Parser ()
+parseAlphaBindingSugar = do
+  parseAlphaAttr
+  parseBindingArrow
+
+splitInput :: Parser a -> String -> [Either String (Tokens [Char])]
+splitInput sep = splitCap (fst <$> match sep)
+
+addPrefix :: Parser a -> String -> [String]
+addPrefix sep = map (either id ("~" <>)) . splitInput sep
+
+preprocess' :: Parser a -> String -> String
+preprocess' sep = concat . addPrefix sep
+
+preprocess :: String -> String
+preprocess = preprocess' parseAlphaBindingSugar
+
+input1 :: String
+input1 = "{⟦ org ↦ ⟦ eolang ↦ ⟦ number( as-bytes, abra  ) ↦ ⟦ φ ↦ ξ.as-bytes, neg ↦ ξ.times(-1), ⟧, λ ⤍ Package ⟧, λ ⤍ Package ⟧ ⟧}"
+
+-- >>> addPrefix parseAlphaBindingSugar input1
+-- ["{\10214 org \8614 \10214 eolang \8614 \10214 ","~number( as-bytes, abra  ) \8614 ","\10214 \966 \8614 \958.as-bytes, neg \8614 \958.times(-1), \10215, \955 \10509 Package \10215, \955 \10509 Package \10215 \10215}"]
+
+-- >>> preprocess input1
+-- "{\10214 org \8614 \10214 eolang \8614 \10214 ~number( as-bytes, abra  ) \8614 \10214 \966 \8614 \958.as-bytes, neg \8614 \958.times(-1), \10215, \955 \10509 Package \10215, \955 \10509 Package \10215 \10215}"
diff --git a/src/Language/EO/Phi/Pretty.hs b/src/Language/EO/Phi/Pretty.hs
new file mode 100644
--- /dev/null
+++ b/src/Language/EO/Phi/Pretty.hs
@@ -0,0 +1,168 @@
+{- FOURMOLU_DISABLE -}
+-- The MIT License (MIT)
+
+-- Copyright (c) 2016-2024 Objectionary.com
+
+-- Permission is hereby granted, free of charge, to any person obtaining a copy
+-- of this software and associated documentation files (the "Software"), to deal
+-- in the Software without restriction, including without limitation the rights
+-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+-- copies of the Software, and to permit persons to whom the Software is
+-- furnished to do so, subject to the following conditions:
+
+-- The above copyright notice and this permission notice shall be included
+-- in all copies or substantial portions of the Software.
+
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+-- FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+-- SOFTWARE.
+{- FOURMOLU_ENABLE -}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE LambdaCase #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
+
+-- {-# LANGUAGE OverloadedStrings #-}
+
+module Language.EO.Phi.Pretty where
+
+import Language.EO.Phi.Syntax.Abs as Abs
+import Prettyprinter
+
+instance Pretty Abs.Bytes where
+  pretty (Abs.Bytes i) = pretty i
+
+instance Pretty Abs.Function where
+  pretty (Abs.Function i) = pretty i
+
+instance Pretty Abs.LabelId where
+  pretty (Abs.LabelId i) = pretty i
+
+instance Pretty Abs.AlphaIndex where
+  pretty (Abs.AlphaIndex i) = pretty i
+
+instance Pretty Abs.LabelMetaId where
+  pretty (Abs.LabelMetaId i) = pretty i
+
+instance Pretty Abs.TailMetaId where
+  pretty (Abs.TailMetaId i) = pretty i
+
+instance Pretty Abs.BindingsMetaId where
+  pretty (Abs.BindingsMetaId i) = pretty i
+
+instance Pretty Abs.ObjectMetaId where
+  pretty (Abs.ObjectMetaId i) = pretty i
+
+instance Pretty Abs.BytesMetaId where
+  pretty (Abs.BytesMetaId i) = pretty i
+
+instance Pretty Abs.MetaFunctionName where
+  pretty (Abs.MetaFunctionName i) = pretty i
+
+instance Pretty Abs.IntegerSigned where
+  pretty (Abs.IntegerSigned i) = pretty i
+
+instance Pretty Abs.DoubleSigned where
+  pretty (Abs.DoubleSigned i) = pretty i
+
+instance Pretty Abs.StringRaw where
+  pretty (Abs.StringRaw i) = pretty i
+
+instance Pretty Abs.Program where
+  pretty = \case
+    Abs.Program bindings ->
+      vsep
+        [ lbrace
+        , indent 2 (pretty (Formation bindings))
+        , rbrace
+        ]
+
+instance Pretty Abs.MetaId where
+  pretty = \case
+    Abs.MetaIdLabel labelmetaid -> pretty labelmetaid
+    Abs.MetaIdTail tailmetaid -> pretty tailmetaid
+    Abs.MetaIdBindings bindingsmetaid -> pretty bindingsmetaid
+    Abs.MetaIdObject objectmetaid -> pretty objectmetaid
+    Abs.MetaIdBytes bytesmetaid -> pretty bytesmetaid
+
+instance Pretty Abs.Object where
+  pretty = \case
+    Abs.Formation bindings ->
+      case bindings of
+        [] -> pretty "⟦" <> pretty "⟧"
+        _ -> vsep [pretty "⟦", indent 2 (pretty bindings), pretty "⟧"]
+    Abs.Application object bindings ->
+      case bindings of
+        [] -> pretty object <> lparen <> rparen
+        _ -> vsep [pretty object <> lparen, indent 2 (pretty bindings), rparen]
+    Abs.ObjectDispatch object attribute -> pretty object <> pretty "." <> pretty attribute
+    Abs.GlobalObject -> pretty "Φ"
+    Abs.GlobalObjectPhiOrg -> pretty "Φ̇"
+    Abs.ThisObject -> pretty "ξ"
+    Abs.Termination -> pretty "⊥"
+    Abs.ConstStringRaw str -> pretty str
+    Abs.ConstString str -> pretty str
+    Abs.ConstIntRaw integersigned -> pretty integersigned
+    Abs.ConstFloatRaw doublesigned -> pretty doublesigned
+    Abs.MetaSubstThis object1 object2 -> pretty object1 <+> lbracket <+> pretty "ξ ↦" <+> pretty object2 <+> rbracket
+    Abs.MetaContextualize object1 object2 -> pretty "⌈" <+> pretty object1 <> pretty "," <+> pretty object2 <> pretty "⌉"
+    Abs.MetaObject objectmetaid -> pretty objectmetaid
+    Abs.MetaTailContext object tailmetaid -> pretty object <+> pretty "*" <+> pretty tailmetaid
+    Abs.MetaFunction metafunctionname object -> vsep [pretty metafunctionname <+> lparen, pretty object, rparen]
+    Abs.ConstFloat d -> pretty d
+    Abs.ConstInt n -> pretty n
+
+instance Pretty Abs.Binding where
+  pretty = \case
+    Abs.AlphaBinding attribute object -> pretty attribute <+> pretty "↦" <+> pretty object
+    Abs.AlphaBindingSugar object -> pretty object
+    Abs.EmptyBinding attribute -> pretty attribute <+> pretty "↦ ∅"
+    Abs.DeltaBinding bytes -> pretty "Δ ⤍" <+> pretty bytes
+    Abs.DeltaEmptyBinding -> pretty "Δ ⤍ ∅"
+    Abs.LambdaBinding function -> pretty "λ ⤍" <+> pretty function
+    Abs.MetaBindings bindingsmetaid -> pretty bindingsmetaid
+    Abs.MetaDeltaBinding bytesmetaid -> pretty "Δ ⤍" <+> pretty bytesmetaid
+
+instance {-# OVERLAPPING #-} Pretty [Abs.Binding] where
+  pretty = vsep . punctuate comma . fmap pretty
+
+instance Pretty Abs.Attribute where
+  pretty = \case
+    Abs.Phi -> pretty "φ"
+    Abs.Rho -> pretty "ρ"
+    Abs.Label labelid -> pretty labelid
+    Abs.Alpha alphaindex -> pretty alphaindex
+    Abs.MetaAttr labelmetaid -> pretty labelmetaid
+    Abs.AttrSugar labelid labelids -> pretty labelid <> lparen <> pretty labelids <> rparen
+    Abs.PhiSugar labelids -> pretty Abs.Phi <> lparen <> pretty labelids <> rparen
+
+instance {-# OVERLAPPING #-} Pretty [Abs.LabelId] where
+  pretty = hsep . punctuate comma . fmap pretty
+
+instance Pretty Abs.RuleAttribute where
+  pretty = \case
+    Abs.ObjectAttr attribute -> pretty attribute
+    Abs.DeltaAttr -> pretty "Δ"
+    Abs.LambdaAttr -> pretty "λ"
+
+instance Pretty Abs.PeeledObject where
+  pretty = \case
+    Abs.PeeledObject objecthead objectactions -> pretty objecthead <+> pretty objectactions
+
+instance Pretty Abs.ObjectHead where
+  pretty = \case
+    Abs.HeadFormation bindings -> vsep [pretty "⟦", indent 2 (pretty bindings), pretty "⟧"]
+    Abs.HeadGlobal -> pretty "Φ"
+    Abs.HeadThis -> pretty "ξ"
+    Abs.HeadTermination -> pretty "⊥"
+
+instance Pretty Abs.ObjectAction where
+  pretty = \case
+    Abs.ActionApplication bindings -> vsep [lparen, indent 2 (pretty bindings), rparen]
+    Abs.ActionDispatch attribute -> pretty "." <> pretty attribute
+
+instance {-# OVERLAPPING #-} Pretty [Abs.ObjectAction] where
+  pretty = hsep . fmap pretty
diff --git a/src/Language/EO/Phi/Rules/Common.hs b/src/Language/EO/Phi/Rules/Common.hs
--- a/src/Language/EO/Phi/Rules/Common.hs
+++ b/src/Language/EO/Phi/Rules/Common.hs
@@ -118,6 +118,7 @@
         ]
     ObjectDispatch obj a -> propagateName2 ObjectDispatch <$> withSubObject f subctx obj <*> pure a
     GlobalObject{} -> []
+    obj@GlobalObjectPhiOrg{} -> errorExpectedDesugaredObject obj
     ThisObject{} -> []
     Termination -> []
     MetaObject _ -> []
@@ -126,8 +127,11 @@
     MetaSubstThis _ _ -> []
     MetaContextualize _ _ -> []
     ConstString{} -> []
+    obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
     ConstInt{} -> []
+    obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
     ConstFloat{} -> []
+    obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
 
 -- | Given a unary function that operates only on plain objects,
 -- converts it to a function that operates on named objects
@@ -153,6 +157,7 @@
 withSubObjectBinding :: (Context -> Object -> [(String, Object)]) -> Context -> Binding -> [(String, Binding)]
 withSubObjectBinding f ctx = \case
   AlphaBinding a obj -> propagateName1 (AlphaBinding a) <$> withSubObject f (ctx{currentAttr = a}) obj
+  b@AlphaBindingSugar{} -> errorExpectedDesugaredBinding b
   EmptyBinding{} -> []
   DeltaBinding{} -> []
   DeltaEmptyBinding{} -> []
@@ -188,16 +193,25 @@
   Application obj bindings -> 1 + objectSize obj + sum (map bindingSize bindings)
   ObjectDispatch obj _attr -> 1 + objectSize obj
   GlobalObject -> 1
+  -- TODO #617:30m
+  -- @fizruk, why desugar here and not assume the object is desugared?
+  -- Is it because we sometimes bounce between sugared and desugared versions?
+  --
+  -- Should we introduce a smart constructor with a desugared object inside?
+  obj@GlobalObjectPhiOrg -> errorExpectedDesugaredObject obj
   ThisObject -> 1
   Termination -> 1
-  MetaObject{} -> 1 -- should be impossible
-  MetaFunction{} -> 1 -- should be impossible
-  MetaSubstThis{} -> 1 -- should be impossible
-  MetaContextualize{} -> 1 -- should be impossible
-  MetaTailContext{} -> 1 -- should be impossible
+  obj@MetaObject{} -> error ("impossible: expected a desugared object, but got: " <> printTree obj)
+  obj@MetaFunction{} -> error ("impossible: expected a desugared object, but got: " <> printTree obj)
+  obj@MetaSubstThis{} -> error ("impossible: expected a desugared object, but got: " <> printTree obj)
+  obj@MetaContextualize{} -> error ("impossible: expected a desugared object, but got: " <> printTree obj)
+  obj@MetaTailContext{} -> error ("impossible: expected a desugared object, but got: " <> printTree obj)
   obj@ConstString{} -> objectSize (desugar obj)
+  obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstInt{} -> objectSize (desugar obj)
+  obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstFloat{} -> objectSize (desugar obj)
+  obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
 
 bindingSize :: Binding -> Int
 bindingSize = \case
@@ -206,8 +220,9 @@
   DeltaBinding _bytes -> 1
   DeltaEmptyBinding -> 1
   LambdaBinding _lam -> 1
-  MetaDeltaBinding{} -> 1 -- should be impossible
-  MetaBindings{} -> 1 -- should be impossible
+  obj@MetaDeltaBinding{} -> error ("impossible: expected a desugared object, but got: " <> printTree obj)
+  obj@MetaBindings{} -> error ("impossible: expected a desugared object, but got: " <> printTree obj)
+  b@AlphaBindingSugar{} -> errorExpectedDesugaredBinding b
 
 -- | A variant of `applyRules` with a maximum application depth.
 applyRulesWith :: ApplicationLimits -> Context -> Object -> [Object]
@@ -250,6 +265,7 @@
   attr (MetaDeltaBinding _) = Label (LabelId "Δ")
   attr (LambdaBinding _) = Label (LabelId "λ")
   attr (MetaBindings (BindingsMetaId metaId)) = MetaAttr (LabelMetaId metaId)
+  attr b@AlphaBindingSugar{} = errorExpectedDesugaredBinding b
 
 equalBinding :: Binding -> Binding -> Bool
 equalBinding (AlphaBinding attr1 obj1) (AlphaBinding attr2 obj2) = attr1 == attr2 && equalObject obj1 obj2
@@ -364,7 +380,7 @@
       ctx <- getContext
       if isNF ctx obj
         then do
-          logStep "Normal form" obj
+          logStep "NF" obj
           return obj
         else do
           (ruleName, obj') <- choose (applyOneRule ctx obj)
diff --git a/src/Language/EO/Phi/Rules/Fast.hs b/src/Language/EO/Phi/Rules/Fast.hs
--- a/src/Language/EO/Phi/Rules/Fast.hs
+++ b/src/Language/EO/Phi/Rules/Fast.hs
@@ -205,6 +205,7 @@
                       AlphaBinding a (fastYegorInsideOut ctx' objA)
                     _ -> binding
           ]
+  obj@GlobalObjectPhiOrg -> errorExpectedDesugaredObject obj
   Termination -> Termination
   MetaSubstThis{} -> error "impossible MetaSubstThis!"
   MetaContextualize{} -> error "impossible MetaContextualize!"
@@ -212,5 +213,8 @@
   MetaTailContext{} -> error "impossible MetaTailContext!"
   MetaFunction{} -> error "impossible MetaFunction!"
   obj@ConstString{} -> obj -- fastYegorInsideOut ctx (desugar obj)
+  obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj -- fastYegorInsideOut ctx (desugar obj)
   obj@ConstInt{} -> obj -- fastYegorInsideOut ctx (desugar obj)
+  obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj -- fastYegorInsideOut ctx (desugar obj)
   obj@ConstFloat{} -> obj -- fastYegorInsideOut ctx (desugar obj)
+  obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj -- fastYegorInsideOut ctx (desugar obj)
diff --git a/src/Language/EO/Phi/Rules/Yaml.hs b/src/Language/EO/Phi/Rules/Yaml.hs
--- a/src/Language/EO/Phi/Rules/Yaml.hs
+++ b/src/Language/EO/Phi/Rules/Yaml.hs
@@ -228,6 +228,7 @@
 objectLabelIds :: Object -> Set LabelId
 objectLabelIds = \case
   GlobalObject -> mempty
+  obj@GlobalObjectPhiOrg -> errorExpectedDesugaredObject obj
   ThisObject -> mempty
   Formation bindings -> foldMap bindingLabelIds bindings
   ObjectDispatch obj a -> objectLabelIds obj <> attrLabelIds a
@@ -239,8 +240,11 @@
   MetaSubstThis obj obj' -> objectLabelIds obj <> objectLabelIds obj'
   MetaContextualize obj obj' -> objectLabelIds obj <> objectLabelIds obj'
   obj@ConstString{} -> objectLabelIds (desugar obj)
+  obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstInt{} -> objectLabelIds (desugar obj)
+  obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstFloat{} -> objectLabelIds (desugar obj)
+  obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
 
 bindingLabelIds :: Binding -> Set LabelId
 bindingLabelIds = \case
@@ -251,6 +255,7 @@
   LambdaBinding _ -> mempty
   MetaBindings _ -> mempty
   MetaDeltaBinding _ -> mempty
+  b@AlphaBindingSugar{} -> errorExpectedDesugaredBinding b
 
 attrLabelIds :: Attribute -> Set LabelId
 attrLabelIds (Label l) = Set.singleton l
@@ -278,6 +283,7 @@
 objectMetaIds (Application object bindings) = objectMetaIds object <> foldMap bindingMetaIds bindings
 objectMetaIds (ObjectDispatch object attr) = objectMetaIds object <> attrMetaIds attr
 objectMetaIds GlobalObject = mempty
+objectMetaIds obj@GlobalObjectPhiOrg = errorExpectedDesugaredObject obj
 objectMetaIds ThisObject = mempty
 objectMetaIds Termination = mempty
 objectMetaIds (MetaObject x) = Set.singleton (MetaIdObject x)
@@ -286,8 +292,11 @@
 objectMetaIds (MetaSubstThis obj obj') = foldMap objectMetaIds [obj, obj']
 objectMetaIds (MetaContextualize obj obj') = foldMap objectMetaIds [obj, obj']
 objectMetaIds obj@ConstString{} = objectMetaIds (desugar obj)
+objectMetaIds obj@ConstStringRaw{} = errorExpectedDesugaredObject obj
 objectMetaIds obj@ConstInt{} = objectMetaIds (desugar obj)
+objectMetaIds obj@ConstIntRaw{} = errorExpectedDesugaredObject obj
 objectMetaIds obj@ConstFloat{} = objectMetaIds (desugar obj)
+objectMetaIds obj@ConstFloatRaw{} = errorExpectedDesugaredObject obj
 
 bindingMetaIds :: Binding -> Set MetaId
 bindingMetaIds (AlphaBinding attr obj) = attrMetaIds attr <> objectMetaIds obj
@@ -297,6 +306,7 @@
 bindingMetaIds (LambdaBinding _) = mempty
 bindingMetaIds (MetaBindings x) = Set.singleton (MetaIdBindings x)
 bindingMetaIds (MetaDeltaBinding x) = Set.singleton (MetaIdBytes x)
+bindingMetaIds b@AlphaBindingSugar{} = errorExpectedDesugaredBinding b
 
 attrMetaIds :: Attribute -> Set MetaId
 attrMetaIds Phi = mempty
@@ -304,12 +314,15 @@
 attrMetaIds (Label _) = mempty
 attrMetaIds (Alpha _) = mempty
 attrMetaIds (MetaAttr x) = Set.singleton (MetaIdLabel x)
+attrMetaIds a@(AttrSugar{}) = errorExpectedDesugaredAttribute a
+attrMetaIds a@(PhiSugar{}) = errorExpectedDesugaredAttribute a
 
 objectHasMetavars :: Object -> Bool
 objectHasMetavars (Formation bindings) = any bindingHasMetavars bindings
 objectHasMetavars (Application object bindings) = objectHasMetavars object || any bindingHasMetavars bindings
 objectHasMetavars (ObjectDispatch object attr) = objectHasMetavars object || attrHasMetavars attr
 objectHasMetavars GlobalObject = False
+objectHasMetavars obj@GlobalObjectPhiOrg = errorExpectedDesugaredObject obj
 objectHasMetavars ThisObject = False
 objectHasMetavars Termination = False
 objectHasMetavars (MetaObject _) = True
@@ -318,8 +331,11 @@
 objectHasMetavars (MetaSubstThis _ _) = True -- technically not a metavar, but a substitution
 objectHasMetavars (MetaContextualize _ _) = True
 objectHasMetavars obj@ConstString{} = objectHasMetavars (desugar obj)
+objectHasMetavars obj@ConstStringRaw{} = errorExpectedDesugaredObject obj
 objectHasMetavars obj@ConstInt{} = objectHasMetavars (desugar obj)
+objectHasMetavars obj@ConstIntRaw{} = errorExpectedDesugaredObject obj
 objectHasMetavars obj@ConstFloat{} = objectHasMetavars (desugar obj)
+objectHasMetavars obj@ConstFloatRaw{} = errorExpectedDesugaredObject obj
 
 bindingHasMetavars :: Binding -> Bool
 bindingHasMetavars (AlphaBinding attr obj) = attrHasMetavars attr || objectHasMetavars obj
@@ -329,6 +345,7 @@
 bindingHasMetavars (LambdaBinding _) = False
 bindingHasMetavars (MetaBindings _) = True
 bindingHasMetavars (MetaDeltaBinding _) = True
+bindingHasMetavars b@AlphaBindingSugar{} = errorExpectedDesugaredBinding b
 
 attrHasMetavars :: Attribute -> Bool
 attrHasMetavars Phi = False
@@ -336,6 +353,8 @@
 attrHasMetavars (Label _) = False
 attrHasMetavars (Alpha _) = False
 attrHasMetavars (MetaAttr _) = True
+attrHasMetavars a@AttrSugar{} = errorExpectedDesugaredAttribute a
+attrHasMetavars a@PhiSugar{} = errorExpectedDesugaredAttribute a
 
 -- | Given a condition, and a substition from object matching
 --   tells whether the condition matches the object
@@ -436,6 +455,7 @@
   ObjectDispatch obj a ->
     ObjectDispatch (applySubst subst obj) (applySubstAttr subst a)
   GlobalObject -> GlobalObject
+  obj@GlobalObjectPhiOrg -> errorExpectedDesugaredObject obj
   ThisObject -> ThisObject
   obj@(MetaObject x) -> fromMaybe obj $ lookup x objectMetas
   Termination -> Termination
@@ -449,8 +469,11 @@
         let holeSubst = mempty{objectMetas = [(holeMetaId, applySubst subst obj)]}
          in applySubst holeSubst contextObject
   obj@ConstString{} -> applySubst subst (desugar obj)
+  obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstInt{} -> applySubst subst (desugar obj)
+  obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
   obj@ConstFloat{} -> applySubst subst (desugar obj)
+  obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
 
 applySubstAttr :: Subst -> Attribute -> Attribute
 applySubstAttr Subst{..} = \case
@@ -471,6 +494,7 @@
   LambdaBinding bytes -> [LambdaBinding (coerce bytes)]
   b@(MetaBindings m) -> fromMaybe [b] (lookup m bindingsMetas)
   b@(MetaDeltaBinding m) -> maybe [b] (pure . DeltaBinding) (lookup m bytesMetas)
+  b@AlphaBindingSugar{} -> errorExpectedDesugaredBinding b
 
 mergeSubst :: Subst -> Subst -> Subst
 mergeSubst (Subst xs ys zs ws us) (Subst xs' ys' zs' ws' us') =
@@ -520,9 +544,13 @@
     ThisObject -> []
     Termination -> []
     ConstString{} -> []
+    ConstStringRaw{} -> errorExpectedDesugaredObject obj
     ConstInt{} -> []
+    ConstIntRaw{} -> errorExpectedDesugaredObject obj
     ConstFloat{} -> []
-    -- should cases below be errors?
+    ConstFloatRaw{} -> errorExpectedDesugaredObject obj
+    -- TODO #617:30m Should cases below be errors?
+    GlobalObjectPhiOrg -> errorExpectedDesugaredObject obj
     MetaSubstThis{} -> []
     MetaContextualize{} -> []
     MetaObject{} -> []
@@ -629,6 +657,7 @@
     Application obj bindings -> Application (go obj) (map (substThisBinding thisObj) bindings)
     ObjectDispatch obj a -> ObjectDispatch (go obj) a
     GlobalObject -> GlobalObject
+    obj@GlobalObjectPhiOrg -> errorExpectedDesugaredObject obj
     Termination -> Termination
     obj@MetaTailContext{} -> error ("impossible: trying to substitute ξ in " <> printTree obj)
     obj@MetaContextualize{} -> error ("impossible: trying to substitute ξ in " <> printTree obj)
@@ -636,12 +665,11 @@
     obj@MetaObject{} -> error ("impossible: trying to substitute ξ in " <> printTree obj)
     obj@MetaFunction{} -> error ("impossible: trying to substitute ξ in " <> printTree obj)
     obj@ConstString{} -> obj
+    obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
     obj@ConstInt{} -> obj
+    obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
     obj@ConstFloat{} -> obj
-
--- {⟦ x ↦ ⟦ b ↦ ⟦ Δ ⤍ 01- ⟧, φ ↦ ⟦ b ↦ ⟦ Δ ⤍ 02- ⟧, c ↦ ⟦ a ↦ ξ.ρ.ρ.b ⟧.a ⟧.c ⟧.φ, λ ⤍ Package ⟧}
-
--- {⟦ λ ⤍ Package, x ↦ ⟦ b ↦ ⟦⟧ ⟧ ⟧}
+    obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
 
 substThisBinding :: Object -> Binding -> Binding
 substThisBinding obj = \case
@@ -652,6 +680,7 @@
   LambdaBinding bytes -> LambdaBinding bytes
   b@MetaBindings{} -> error ("impossible: trying to substitute ξ in " <> printTree b)
   b@MetaDeltaBinding{} -> error ("impossible: trying to substitute ξ in " <> printTree b)
+  b@AlphaBindingSugar{} -> errorExpectedDesugaredBinding b
 
 contextualize :: Object -> Object -> Object
 contextualize thisObj = go
@@ -662,6 +691,7 @@
     ObjectDispatch obj a -> ObjectDispatch (go obj) a
     Application obj bindings -> Application (go obj) (map (contextualizeBinding thisObj) bindings)
     GlobalObject -> GlobalObject -- TODO: Change to what GlobalObject is attached to
+    obj@GlobalObjectPhiOrg -> errorExpectedDesugaredObject obj
     Termination -> Termination
     obj@MetaTailContext{} -> error ("impossible: trying to contextualize " <> printTree obj)
     obj@MetaContextualize{} -> error ("impossible: trying to contextualize " <> printTree obj)
@@ -669,8 +699,11 @@
     obj@MetaObject{} -> error ("impossible: trying to contextualize " <> printTree obj)
     obj@MetaFunction{} -> error ("impossible: trying to contextualize " <> printTree obj)
     obj@ConstString{} -> go (desugar obj)
+    obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
     obj@ConstInt{} -> go (desugar obj)
+    obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
     obj@ConstFloat{} -> go (desugar obj)
+    obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
 
 contextualizeBinding :: Object -> Binding -> Binding
 contextualizeBinding obj = \case
@@ -681,3 +714,4 @@
   LambdaBinding bytes -> LambdaBinding bytes
   b@MetaBindings{} -> error ("impossible: trying to contextualize " <> printTree b)
   b@MetaDeltaBinding{} -> error ("impossible: trying to contextualize " <> printTree b)
+  b@AlphaBindingSugar{} -> errorExpectedDesugaredBinding b
diff --git a/src/Language/EO/Phi/Syntax.hs b/src/Language/EO/Phi/Syntax.hs
--- a/src/Language/EO/Phi/Syntax.hs
+++ b/src/Language/EO/Phi/Syntax.hs
@@ -21,32 +21,45 @@
 -- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 -- SOFTWARE.
 {- FOURMOLU_ENABLE -}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE InstanceSigs #-}
 {-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE UndecidableInstances #-}
 {-# LANGUAGE ViewPatterns #-}
+{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-}
 {-# OPTIONS_GHC -Wno-orphans #-}
 
 module Language.EO.Phi.Syntax (
   module Language.EO.Phi.Syntax.Abs,
   desugar,
   printTree,
-  shrinkDots,
+  printTreeDontSugar,
 
   -- * Conversion to 'Bytes'
   intToBytes,
+  int64ToBytes,
+  int32ToBytes,
+  int16ToBytes,
   floatToBytes,
   boolToBytes,
   stringToBytes,
 
   -- * Conversion from 'Bytes'
   bytesToInt,
+  bytesToInt64,
+  bytesToInt32,
+  bytesToInt16,
   bytesToFloat,
   bytesToString,
   bytesToBool,
 
   -- * Wrapping 'Bytes' into 'Object'
   wrapBytesInConstInt,
+  wrapBytesInConstInt64,
+  wrapBytesInConstInt32,
+  wrapBytesInConstInt16,
   wrapBytesInConstFloat,
   wrapBytesInConstString,
   wrapBytesInBytes,
@@ -65,36 +78,182 @@
   paddedLeftChunksOf,
   normalizeBytes,
   parseWith,
+  errorExpectedDesugaredObject,
+  errorExpectedDesugaredBinding,
+  errorExpectedDesugaredAttribute,
 ) where
 
 import Data.ByteString (ByteString)
 import Data.ByteString qualified as ByteString.Strict
-import Data.Char (isSpace, toUpper)
+import Data.Char (toUpper)
+import Data.Int
 import Data.List (intercalate)
 import Data.Serialize qualified as Serialize
 import Data.String (IsString (fromString))
+import Data.Text qualified as T
 import Data.Text qualified as Text
 import Data.Text.Encoding qualified as Text
+import GHC.Float (isDoubleFinite)
+import Language.EO.Phi.Preprocess (preprocess)
+import Language.EO.Phi.Pretty ()
 import Language.EO.Phi.Syntax.Abs
 import Language.EO.Phi.Syntax.Lex (Token)
 import Language.EO.Phi.Syntax.Par
-import Language.EO.Phi.Syntax.Print qualified as Phi
 import Numeric (readHex, showHex)
+import Prettyprinter (LayoutOptions (..), PageWidth (..), Pretty (pretty), defaultLayoutOptions, layoutPretty)
+import Prettyprinter.Render.Text (renderStrict)
 import PyF (fmt)
+import Text.Printf (printf)
 
 -- $setup
 -- >>> :set -XOverloadedStrings
 -- >>> :set -XOverloadedLists
 
+errorExpectedButGot :: (Pretty a, SugarableFinally a) => String -> a -> b
+errorExpectedButGot type' x = error ([fmt|impossible: expected desugared {type'}, but got:\n|] <> printTree x)
+
+errorExpectedDesugaredObject :: Object -> a
+errorExpectedDesugaredObject = errorExpectedButGot "Object"
+
+errorExpectedDesugaredBinding :: Binding -> a
+errorExpectedDesugaredBinding = errorExpectedButGot "Binding"
+
+errorExpectedDesugaredAttribute :: Attribute -> a
+errorExpectedDesugaredAttribute = errorExpectedButGot "Attribute"
+
+class DesugarableInitially a where
+  desugarInitially :: a -> a
+  desugarInitially = id
+
+instance DesugarableInitially Object where
+  desugarInitially :: Object -> Object
+  desugarInitially = \case
+    obj@(ConstString{}) -> obj
+    ConstStringRaw (StringRaw s) -> ConstString (init (tail s))
+    obj@(ConstInt{}) -> obj
+    ConstIntRaw (IntegerSigned x) -> ConstInt (read x)
+    obj@(ConstFloat{}) -> obj
+    ConstFloatRaw (DoubleSigned x) -> ConstFloat (read x)
+    Formation bindings -> Formation (desugarInitially bindings)
+    Application obj bindings -> Application (desugarInitially obj) (desugarInitially bindings)
+    ObjectDispatch obj a -> ObjectDispatch (desugarInitially obj) a
+    GlobalObject -> GlobalObject
+    GlobalObjectPhiOrg -> "Φ.org.eolang"
+    ThisObject -> ThisObject
+    Termination -> Termination
+    MetaSubstThis obj this -> MetaSubstThis (desugarInitially obj) (desugarInitially this)
+    obj@MetaObject{} -> obj
+    MetaContextualize obj1 obj2 -> MetaContextualize (desugarInitially obj1) (desugarInitially obj2)
+    MetaTailContext obj metaId -> MetaTailContext (desugarInitially obj) metaId
+    MetaFunction name obj -> MetaFunction name (desugarInitially obj)
+
+instance DesugarableInitially [Binding] where
+  desugarInitially :: [Binding] -> [Binding]
+  desugarInitially = zipWith go [0 ..]
+   where
+    go :: Int -> Binding -> Binding
+    go idx = \case
+      AlphaBinding (AttrSugar l ls) (Formation bindings) ->
+        let bindingsDesugared = desugarInitially bindings
+         in AlphaBinding (Label l) (Formation ((EmptyBinding . Label <$> ls) <> bindingsDesugared))
+      AlphaBinding (PhiSugar ls) (Formation bindings) ->
+        let bindingsDesugared = desugarInitially bindings
+         in AlphaBinding Phi (Formation ((EmptyBinding . Label <$> ls) <> bindingsDesugared))
+      AlphaBinding a obj -> AlphaBinding a (desugarInitially obj)
+      AlphaBindingSugar obj -> AlphaBinding (Alpha (AlphaIndex [fmt|α{idx}|])) (desugarInitially obj)
+      binding -> binding
+
+instance DesugarableInitially Program where
+  desugarInitially :: Program -> Program
+  desugarInitially (Program bindings) = Program (desugarInitially bindings)
+
+instance DesugarableInitially Binding where
+  desugarInitially = \case
+    obj@AlphaBindingSugar{} -> errorExpectedDesugaredBinding obj
+    AlphaBinding a obj -> AlphaBinding a (desugarInitially obj)
+    obj -> obj
+
+instance DesugarableInitially Attribute
+instance DesugarableInitially RuleAttribute
+instance DesugarableInitially PeeledObject
+instance DesugarableInitially ObjectHead
+instance DesugarableInitially MetaId
+
+class SugarableFinally a where
+  sugarFinally :: a -> a
+  sugarFinally = id
+
+instance SugarableFinally Program where
+  sugarFinally :: Program -> Program
+  sugarFinally (Program bindings) = Program (sugarFinally bindings)
+
+instance SugarableFinally Object where
+  sugarFinally :: Object -> Object
+  sugarFinally = \case
+    "Φ.org.eolang" -> GlobalObjectPhiOrg
+    obj@ConstString{} -> obj
+    obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
+    obj@ConstInt{} -> obj
+    obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
+    obj@ConstFloat{} -> obj
+    obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
+    Formation bindings -> Formation (sugarFinally <$> bindings)
+    Application obj bindings -> Application (sugarFinally obj) (sugarFinally bindings)
+    ObjectDispatch obj a -> ObjectDispatch (sugarFinally obj) a
+    GlobalObject -> GlobalObject
+    obj@GlobalObjectPhiOrg -> errorExpectedDesugaredObject obj
+    ThisObject -> ThisObject
+    Termination -> Termination
+    MetaSubstThis obj this -> MetaSubstThis (sugarFinally obj) (sugarFinally this)
+    obj@MetaObject{} -> obj
+    MetaContextualize obj1 obj2 -> MetaContextualize (sugarFinally obj1) (sugarFinally obj2)
+    MetaTailContext obj metaId -> MetaTailContext (sugarFinally obj) metaId
+    MetaFunction name obj -> MetaFunction name (sugarFinally obj)
+
+instance SugarableFinally [Binding] where
+  sugarFinally :: [Binding] -> [Binding]
+  sugarFinally bs =
+    if and (zipWith go [0 ..] bs)
+      then (\(~(AlphaBinding _ obj)) -> AlphaBindingSugar (sugarFinally obj)) <$> bs
+      else sugarFinally <$> bs
+   where
+    go :: Int -> Binding -> Bool
+    go idx = \case
+      obj@AlphaBindingSugar{} -> errorExpectedDesugaredBinding obj
+      obj@(AlphaBinding (AttrSugar _ _) _) -> errorExpectedDesugaredBinding obj
+      obj@(AlphaBinding (PhiSugar _) _) -> errorExpectedDesugaredBinding obj
+      AlphaBinding (Alpha (AlphaIndex ('α' : idx'))) _ -> idx == read idx'
+      _ -> False
+
+instance SugarableFinally Binding where
+  sugarFinally :: Binding -> Binding
+  sugarFinally = \case
+    obj@AlphaBindingSugar{} -> errorExpectedDesugaredBinding obj
+    AlphaBinding a obj -> AlphaBinding a (sugarFinally obj)
+    x -> x
+
+instance SugarableFinally ObjectMetaId
+instance SugarableFinally BindingsMetaId
+instance SugarableFinally LabelMetaId
+instance SugarableFinally BytesMetaId
+instance SugarableFinally Attribute
+instance SugarableFinally TailMetaId
+instance SugarableFinally Bytes
+instance SugarableFinally MetaId
+
 desugar :: Object -> Object
 desugar = \case
   ConstString string -> wrapBytesInString (stringToBytes string)
+  obj@ConstStringRaw{} -> errorExpectedDesugaredObject obj
   ConstInt n -> wrapBytesInInt (intToBytes (fromInteger n))
+  obj@ConstIntRaw{} -> errorExpectedDesugaredObject obj
   ConstFloat x -> wrapBytesInFloat (floatToBytes x)
-  Formation bindings -> Formation (map desugarBinding bindings)
-  Application obj bindings -> Application (desugar obj) (map desugarBinding bindings)
+  obj@ConstFloatRaw{} -> errorExpectedDesugaredObject obj
+  Formation bindings -> Formation (desugarBinding <$> bindings)
+  Application obj bindings -> Application (desugar obj) (desugarBinding <$> bindings)
   ObjectDispatch obj a -> ObjectDispatch (desugar obj) a
   GlobalObject -> GlobalObject
+  obj@GlobalObjectPhiOrg -> errorExpectedDesugaredObject obj
   ThisObject -> ThisObject
   Termination -> Termination
   MetaSubstThis obj this -> MetaSubstThis (desugar obj) (desugar this)
@@ -105,129 +264,75 @@
 
 desugarBinding :: Binding -> Binding
 desugarBinding = \case
+  AlphaBinding (AttrSugar l ls) (Formation bindings) ->
+    let bindingsDesugared = desugarBinding <$> bindings
+     in AlphaBinding (Label l) (Formation ((EmptyBinding . Label <$> ls) <> bindingsDesugared))
+  AlphaBinding (PhiSugar ls) (Formation bindings) ->
+    let bindingsDesugared = desugarBinding <$> bindings
+     in AlphaBinding Phi (Formation ((EmptyBinding . Label <$> ls) <> bindingsDesugared))
   AlphaBinding a obj -> AlphaBinding a (desugar obj)
+  obj@(AlphaBindingSugar{}) -> errorExpectedDesugaredBinding obj
   binding -> binding
 
 -- MetaSubstThis
 
 wrapBytesInInt :: Bytes -> Object
-wrapBytesInInt (Bytes bytes) = [fmt|Φ.org.eolang.int(as-bytes ↦ Φ.org.eolang.bytes(Δ ⤍ {bytes}))|]
+wrapBytesInInt (Bytes bytes) = [fmt|Φ.org.eolang.i64(as-bytes ↦ Φ.org.eolang.bytes(⟦ Δ ⤍ {bytes} ⟧))|]
 wrapBytesInFloat :: Bytes -> Object
-wrapBytesInFloat (Bytes bytes) = [fmt|Φ.org.eolang.float(as-bytes ↦ Φ.org.eolang.bytes(Δ ⤍ {bytes}))|]
+wrapBytesInFloat (Bytes bytes) = [fmt|Φ.org.eolang.number(as-bytes ↦ Φ.org.eolang.bytes(⟦ Δ ⤍ {bytes} ⟧))|]
 wrapBytesInString :: Bytes -> Object
-wrapBytesInString (Bytes bytes) = [fmt|Φ.org.eolang.string(as-bytes ↦ Φ.org.eolang.bytes(Δ ⤍ {bytes}))|]
+wrapBytesInString (Bytes bytes) = [fmt|Φ.org.eolang.string(as-bytes ↦ Φ.org.eolang.bytes(⟦ Δ ⤍ {bytes} ⟧))|]
 wrapBytesInBytes :: Bytes -> Object
-wrapBytesInBytes (Bytes bytes) = [fmt|Φ.org.eolang.bytes(Δ ⤍ {bytes})|]
+wrapBytesInBytes (Bytes bytes) = [fmt|Φ.org.eolang.bytes(⟦ Δ ⤍ {bytes} ⟧)|]
 wrapTermination :: Object
-wrapTermination = [fmt|Φ.org.eolang.error(α0 ↦ Φ.org.eolang.string(as-bytes ↦ Φ.org.eolang.bytes(Δ ⤍ {bytes})))|]
+wrapTermination = [fmt|Φ.org.eolang.error(α0 ↦ Φ.org.eolang.string(as-bytes ↦ Φ.org.eolang.bytes(⟦ Δ ⤍ {bytes} ⟧)))|]
  where
   Bytes bytes = stringToBytes "unknown error"
 
 wrapBytesInConstInt :: Bytes -> Object
-wrapBytesInConstInt bytes = [fmt|Φ.org.eolang.int(as-bytes ↦ {bytesToInt bytes})|]
+wrapBytesInConstInt = wrapBytesInConstInt64
 
+wrapBytesInConstInt64 :: Bytes -> Object
+wrapBytesInConstInt64 bytes@(Bytes bs)
+  | n < 0 = [fmt|Φ.org.eolang.i64(as-bytes ↦ Φ.org.eolang.bytes(⟦ Δ ⤍ {bs} ⟧))|]
+  | otherwise = [fmt|Φ.org.eolang.i64(as-bytes ↦ {n})|]
+ where
+  n = bytesToInt bytes
+
+wrapBytesInConstInt32 :: Bytes -> Object
+wrapBytesInConstInt32 bytes@(Bytes bs)
+  | n < 0 = [fmt|Φ.org.eolang.i32(as-bytes ↦ Φ.org.eolang.bytes(⟦ Δ ⤍ {bs} ⟧))|]
+  | otherwise = [fmt|Φ.org.eolang.i32(as-bytes ↦ {n})|]
+ where
+  n = bytesToInt bytes
+
+wrapBytesInConstInt16 :: Bytes -> Object
+wrapBytesInConstInt16 bytes@(Bytes bs)
+  | n < 0 = [fmt|Φ.org.eolang.i16(as-bytes ↦ Φ.org.eolang.bytes(⟦ Δ ⤍ {bs} ⟧))|]
+  | otherwise = [fmt|Φ.org.eolang.i16(as-bytes ↦ {n})|]
+ where
+  n = bytesToInt bytes
+
 wrapBytesInConstFloat :: Bytes -> Object
-wrapBytesInConstFloat bytes = [fmt|Φ.org.eolang.float(as-bytes ↦ {bytesToFloat bytes})|]
+wrapBytesInConstFloat bytes@(Bytes bs)
+  | x == 0 = [fmt|Φ.org.eolang.number(as-bytes ↦ 0.0)|]
+  | x > 0 && isDoubleFinite x == 1 = [fmt|Φ.org.eolang.number(as-bytes ↦ {printf "%f" x :: String})|]
+  | otherwise = [fmt|Φ.org.eolang.number(as-bytes ↦ Φ.org.eolang.bytes(⟦ Δ ⤍ {bs} ⟧))|]
+ where
+  x = bytesToFloat bytes
 
 wrapBytesInConstString :: Bytes -> Object
-wrapBytesInConstString bytes = [fmt|Φ.org.eolang.string(as-bytes ↦ {show (bytesToString bytes)})|]
+wrapBytesInConstString bytes@(Bytes bs)
+  | '\\' `elem` s = [fmt|Φ.org.eolang.string(as-bytes ↦ Φ.org.eolang.bytes(⟦ Δ ⤍ {bs} ⟧))|]
+  | otherwise = [fmt|Φ.org.eolang.string(as-bytes ↦ {s})|]
+ where
+  s = show (bytesToString bytes)
 
 wrapBytesAsBool :: Bytes -> Object
 wrapBytesAsBool bytes
   | bytesToInt bytes == 0 = [fmt|Φ.org.eolang.false|]
   | otherwise = [fmt|Φ.org.eolang.true|]
 
--- * Overriding generated pretty-printer
-
--- | Like 'Phi.printTree', but without spaces around dots and no indentation for curly braces.
-printTree :: (Phi.Print a) => a -> String
-printTree = shrinkDots . render . Phi.prt 0
-
--- | Remove spaces around dots.
---
--- >>> shrinkDots "a ↦ ξ . a" == "a ↦ ξ.a"
--- True
-shrinkDots :: String -> String
-shrinkDots [] = []
-shrinkDots (' ' : '.' : ' ' : cs) = '.' : shrinkDots cs
-shrinkDots (c : cs) = c : shrinkDots cs
-
--- | Copy of 'Phi.render', except no indentation is made for curly braces.
-render :: Phi.Doc -> String
-render d = rend 0 False (map ($ "") $ d []) ""
- where
-  rend ::
-    Int ->
-    -- \^ Indentation level.
-    Bool ->
-    -- \^ Pending indentation to be output before next character?
-    [String] ->
-    ShowS
-  rend i p = \case
-    "[" : "]" : ts -> showString "[]" . rend i False ts
-    "(" : ")" : (t : ts) -> handleTrailingComma "()" t ts
-    "⟦" : "⟧" : (t : ts) -> handleTrailingComma "⟦⟧" t ts
-    "[" : ts -> char '[' . rend i False ts
-    "(" : ts -> char '(' . new (i + 1) ts
-    "{" : "⟦" : ts -> showChar '{' . onNewLine (i + 1) p . showChar '⟦' . new (i + 2) ts
-    "⟦" : ts -> showChar '⟦' . new (i + 1) ts
-    ")" : "," : ts -> onNewLine (i - 1) p . showString ")," . new (i - 1) ts
-    "⟧" : "," : ts -> onNewLine (i - 1) p . showString "⟧," . new (i - 1) ts
-    ["⟧", "}"] -> onNewLine (i - 1) p . showChar '⟧' . new (i - 2) ["}"]
-    "⟧" : ts -> onNewLine (i - 1) p . showChar '⟧' . new (i - 1) ts
-    ")" : ts -> onNewLine (i - 1) p . showChar ')' . new (i - 1) ts
-    [";"] -> char ';'
-    ";" : ts -> char ';' . new i ts
-    "." : ts -> rend i p (" ." : ts)
-    t : (s : ss) | closingOrPunctuation s -> handleTrailingComma t s ss
-    t : ts -> pending . space t . rend i False ts
-    [] -> id
-   where
-    -- Output character after pending indentation.
-    char :: Char -> ShowS
-    char c = pending . showChar c
-
-    handleTrailingComma str t ts =
-      (pending . showString str)
-        . ( case t of
-              "," -> showChar ',' . new i ts
-              _ -> rend i False (t : ts)
-          )
-
-    -- Output pending indentation.
-    pending :: ShowS
-    pending = if p then indent i else id
-
-  -- Indentation (spaces) for given indentation level.
-  indent :: Int -> ShowS
-  indent i = Phi.replicateS (2 * i) (showChar ' ')
-
-  -- Continue rendering in new line with new indentation.
-  new :: Int -> [String] -> ShowS
-  new j ts = showChar '\n' . rend j True ts
-
-  -- Separate given string from following text by a space (if needed).
-  space :: String -> ShowS
-  space t s =
-    case (all isSpace t, null spc, null rest) of
-      (True, _, True) -> [] -- remove trailing space
-      (False, _, True) -> t -- remove trailing space
-      (False, True, False) -> t ++ ' ' : s -- add space if none
-      _ -> t ++ s
-   where
-    (spc, rest) = span isSpace s
-
-  closingOrPunctuation :: String -> Bool
-  closingOrPunctuation [c] = c `elem` closerOrPunct
-  closingOrPunctuation _ = False
-
-  closerOrPunct :: String
-  closerOrPunct = ")],;"
-
-  -- Make sure we are on a fresh line.
-  onNewLine :: Int -> Bool -> ShowS
-  onNewLine i p = (if p then id else showChar '\n') . indent i
-
 padLeft :: Int -> [Char] -> [Char]
 padLeft n s = replicate (n - length s) '0' ++ s
 
@@ -318,6 +423,39 @@
 intToBytes :: Int -> Bytes
 intToBytes n = Bytes $ normalizeBytes $ foldMap (padLeft 2 . (`showHex` "")) $ ByteString.Strict.unpack $ Serialize.encode n
 
+-- | Convert an 'Int64' into 'Bytes' representation.
+--
+-- >>> int64ToBytes 7
+-- Bytes "00-00-00-00-00-00-00-07"
+-- >>> int64ToBytes (3^33)
+-- Bytes "00-13-BF-EF-A6-5A-BB-83"
+-- >>> int64ToBytes (-1)
+-- Bytes "FF-FF-FF-FF-FF-FF-FF-FF"
+int64ToBytes :: Int64 -> Bytes
+int64ToBytes n = Bytes $ normalizeBytes $ foldMap (padLeft 2 . (`showHex` "")) $ ByteString.Strict.unpack $ Serialize.encode n
+
+-- | Convert an 'Int32' into 'Bytes' representation.
+--
+-- >>> int32ToBytes 7
+-- Bytes "00-00-00-07"
+-- >>> int32ToBytes (3^33)
+-- Bytes "A6-5A-BB-83"
+-- >>> int32ToBytes (-1)
+-- Bytes "FF-FF-FF-FF"
+int32ToBytes :: Int32 -> Bytes
+int32ToBytes n = Bytes $ normalizeBytes $ foldMap (padLeft 2 . (`showHex` "")) $ ByteString.Strict.unpack $ Serialize.encode n
+
+-- | Convert an 'Int16' into 'Bytes' representation.
+--
+-- >>> int16ToBytes 7
+-- Bytes "00-07"
+-- >>> int16ToBytes (3^33)
+-- Bytes "BB-83"
+-- >>> int16ToBytes (-1)
+-- Bytes "FF-FF"
+int16ToBytes :: Int16 -> Bytes
+int16ToBytes n = Bytes $ normalizeBytes $ foldMap (padLeft 2 . (`showHex` "")) $ ByteString.Strict.unpack $ Serialize.encode n
+
 -- | Parse 'Bytes' as 'Int'.
 --
 -- >>> bytesToInt "00-13-BF-EF-A6-5A-BB-83"
@@ -340,6 +478,72 @@
   | null bytes = 0
   | otherwise = fst $ head $ readHex bytes
 
+-- | Parse 'Bytes' as 'Int64'.
+--
+-- >>> bytesToInt64 "00-13-BF-EF-A6-5A-BB-83"
+-- 5559060566555523
+-- >>> bytesToInt64 "AB-"
+-- 171
+--
+-- May error on invalid 'Bytes':
+--
+-- >>> bytesToInt64 "s"
+-- *** Exception: Prelude.head: empty list
+-- ...
+-- ...
+-- ...
+-- ...
+-- ...
+-- ...
+bytesToInt64 :: Bytes -> Int64
+bytesToInt64 (Bytes (dropWhile (== '0') . filter (/= '-') -> bytes))
+  | null bytes = 0
+  | otherwise = fst $ head $ readHex bytes
+
+-- | Parse 'Bytes' as 'Int32'.
+--
+-- >>> bytesToInt32 "A6-5A-BB-83"
+-- -1504003197
+-- >>> bytesToInt32 "AB-"
+-- 171
+--
+-- May error on invalid 'Bytes':
+--
+-- >>> bytesToInt32 "s"
+-- *** Exception: Prelude.head: empty list
+-- ...
+-- ...
+-- ...
+-- ...
+-- ...
+-- ...
+bytesToInt32 :: Bytes -> Int32
+bytesToInt32 (Bytes (dropWhile (== '0') . filter (/= '-') -> bytes))
+  | null bytes = 0
+  | otherwise = fst $ head $ readHex bytes
+
+-- | Parse 'Bytes' as 'Int16'.
+--
+-- >>> bytesToInt16 "BB-83"
+-- -17533
+-- >>> bytesToInt16 "AB-"
+-- 171
+--
+-- May error on invalid 'Bytes':
+--
+-- >>> bytesToInt16 "s"
+-- *** Exception: Prelude.head: empty list
+-- ...
+-- ...
+-- ...
+-- ...
+-- ...
+-- ...
+bytesToInt16 :: Bytes -> Int16
+bytesToInt16 (Bytes (dropWhile (== '0') . filter (/= '-') -> bytes))
+  | null bytes = 0
+  | otherwise = fst $ head $ readHex bytes
+
 -- | Convert 'Bool' to 'Bytes'.
 --
 -- >>> boolToBytes False
@@ -451,19 +655,32 @@
 instance IsString RuleAttribute where fromString = unsafeParseWith pRuleAttribute
 instance IsString PeeledObject where fromString = unsafeParseWith pPeeledObject
 instance IsString ObjectHead where fromString = unsafeParseWith pObjectHead
-
 instance IsString MetaId where fromString = unsafeParseWith pMetaId
 
-parseWith :: ([Token] -> Either String a) -> String -> Either String a
-parseWith parser input = either (\x -> Left [fmt|{x}\non the input:\n{input}|]) Right parsed
+parseWith :: (DesugarableInitially a) => ([Token] -> Either String a) -> String -> Either String a
+parseWith parser input = either (\x -> Left [fmt|{x}\non the input:\n{input'}|]) (Right . desugarInitially) parsed
  where
-  tokens = myLexer input
+  input' = preprocess input
+  tokens = myLexer input'
   parsed = parser tokens
 
 -- | Parse a 'Object' from a 'String'.
 -- May throw an 'error` if input has a syntactical or lexical errors.
-unsafeParseWith :: ([Token] -> Either String a) -> String -> a
+unsafeParseWith :: (DesugarableInitially a) => ([Token] -> Either String a) -> String -> a
 unsafeParseWith parser input =
   case parseWith parser input of
     Left parseError -> error parseError
     Right object -> object
+
+printTreeDontSugar :: (Pretty a) => a -> String
+printTreeDontSugar =
+  T.unpack
+    . renderStrict
+    . layoutPretty defaultLayoutOptions{layoutPageWidth = Unbounded}
+    . pretty
+
+-- | The top-level printing method.
+printTree :: (Pretty a, SugarableFinally a) => a -> String
+printTree =
+  printTreeDontSugar
+    . sugarFinally
diff --git a/src/Language/EO/Phi/Syntax/Abs.hs b/src/Language/EO/Phi/Syntax/Abs.hs
--- a/src/Language/EO/Phi/Syntax/Abs.hs
+++ b/src/Language/EO/Phi/Syntax/Abs.hs
@@ -64,20 +64,25 @@
     | Application Object [Binding]
     | ObjectDispatch Object Attribute
     | GlobalObject
+    | GlobalObjectPhiOrg
     | ThisObject
     | Termination
-    | ConstString String
-    | ConstInt Integer
-    | ConstFloat Double
+    | ConstStringRaw StringRaw
+    | ConstIntRaw IntegerSigned
+    | ConstFloatRaw DoubleSigned
     | MetaSubstThis Object Object
     | MetaContextualize Object Object
     | MetaObject ObjectMetaId
     | MetaTailContext Object TailMetaId
     | MetaFunction MetaFunctionName Object
+    | ConstFloat Double
+    | ConstInt Integer
+    | ConstString String
   deriving (C.Eq, C.Ord, C.Show, C.Read, C.Data, C.Typeable, C.Generic)
 
 data Binding
     = AlphaBinding Attribute Object
+    | AlphaBindingSugar Object
     | EmptyBinding Attribute
     | DeltaBinding Bytes
     | DeltaEmptyBinding
@@ -88,10 +93,12 @@
 
 data Attribute
     = Phi
+    | PhiSugar [LabelId]
     | Rho
     | Label LabelId
     | Alpha AlphaIndex
     | MetaAttr LabelMetaId
+    | AttrSugar LabelId [LabelId]
   deriving (C.Eq, C.Ord, C.Show, C.Read, C.Data, C.Typeable, C.Generic)
 
 data RuleAttribute = ObjectAttr Attribute | DeltaAttr | LambdaAttr
@@ -136,5 +143,14 @@
   deriving (C.Eq, C.Ord, C.Show, C.Read, C.Data, C.Typeable, C.Generic, Data.String.IsString)
 
 newtype MetaFunctionName = MetaFunctionName String
+  deriving (C.Eq, C.Ord, C.Show, C.Read, C.Data, C.Typeable, C.Generic, Data.String.IsString)
+
+newtype IntegerSigned = IntegerSigned String
+  deriving (C.Eq, C.Ord, C.Show, C.Read, C.Data, C.Typeable, C.Generic, Data.String.IsString)
+
+newtype DoubleSigned = DoubleSigned String
+  deriving (C.Eq, C.Ord, C.Show, C.Read, C.Data, C.Typeable, C.Generic, Data.String.IsString)
+
+newtype StringRaw = StringRaw String
   deriving (C.Eq, C.Ord, C.Show, C.Read, C.Data, C.Typeable, C.Generic, Data.String.IsString)
 
diff --git a/src/Language/EO/Phi/Syntax/Lex.hs b/src/Language/EO/Phi/Syntax/Lex.hs
--- a/src/Language/EO/Phi/Syntax/Lex.hs
+++ b/src/Language/EO/Phi/Syntax/Lex.hs
@@ -27,22625 +27,26054 @@
 alex_tab_size :: Int
 alex_tab_size = 8
 alex_base :: Array Int Int
-alex_base = listArray (0 :: Int, 171)
-  [ -8
-  , -153
-  , -159
-  , 91
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-  , 0
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-  , 10465
-  , 10578
-  ]
-
-alex_table :: Array Int Int
-alex_table = listArray (0 :: Int, 10833)
-  [ 0
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-  , 253
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-  , 255
-  ]
-
-alex_deflt :: Array Int Int
-alex_deflt = listArray (0 :: Int, 171)
-  [ -1
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-  , 6
-  , -1
-  , -1
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-  , 25
-  , -1
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-  , 35
-  , -1
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-  , 52
-  , 40
-  , 41
-  , 52
-  , 40
-  , 41
-  , 52
-  , 41
-  , 52
-  , -1
-  , -1
-  , -1
-  , -1
-  , 52
-  , 52
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , 63
-  , 64
-  , 71
-  , 63
-  , 64
-  , 71
-  , -1
-  , -1
-  , 71
-  , 71
-  , 71
-  , -1
-  , 75
-  , 76
-  , 83
-  , 75
-  , 76
-  , 83
-  , -1
-  , -1
-  , 83
-  , 83
-  , 167
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , 93
-  , 93
-  , -1
-  , -1
-  , -1
-  , 93
-  , 112
-  , 113
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , -1
-  , 93
-  , 112
-  , 113
-  , -1
-  , -1
-  , -1
-  , 118
-  , 118
-  , -1
-  , -1
-  , 118
-  , 128
-  , 118
-  , 128
-  , 129
-  , 35
-  , 118
-  , 128
-  , 129
-  , 131
-  , 131
-  , -1
-  , -1
-  , 131
-  , 140
-  , 131
-  , 140
-  , 141
-  , 131
-  , 140
-  , 141
-  , 143
-  , 143
-  , -1
-  , -1
-  , 143
-  , 152
-  , 143
-  , 152
-  , 153
-  , 143
-  , 152
-  , 153
-  , 155
-  , 155
-  , -1
-  , -1
-  , 155
-  , 164
-  , 155
-  , 164
-  , 165
-  , 155
-  , 164
-  , 165
-  , 6
-  , 84
-  , 6
-  , 167
-  , 84
-  ]
-
-alex_accept = listArray (0 :: Int, 171)
-  [ AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 24
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 23
-  , AlexAccNone
-  , AlexAcc 22
-  , AlexAcc 21
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 20
-  , AlexAcc 19
-  , AlexAcc 18
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 17
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 16
-  , AlexAcc 15
-  , AlexAccNone
-  , AlexAcc 14
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 13
-  , AlexAccSkip
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccSkip
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccSkip
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 12
-  , AlexAccNone
-  , AlexAcc 11
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 10
-  , AlexAcc 9
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 8
-  , AlexAcc 7
-  , AlexAcc 6
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 5
-  , AlexAccNone
-  , AlexAcc 4
-  , AlexAcc 3
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 2
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 1
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAcc 0
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  , AlexAccNone
-  ]
-
-alex_actions = array (0 :: Int, 25)
-  [ (24,alex_action_9)
-  , (23,alex_action_8)
-  , (22,alex_action_7)
-  , (21,alex_action_7)
-  , (20,alex_action_6)
-  , (19,alex_action_6)
-  , (18,alex_action_5)
-  , (17,alex_action_5)
-  , (16,alex_action_5)
-  , (15,alex_action_16)
-  , (14,alex_action_4)
-  , (13,alex_action_3)
-  , (12,alex_action_17)
-  , (11,alex_action_17)
-  , (10,alex_action_16)
-  , (9,alex_action_15)
-  , (8,alex_action_16)
-  , (7,alex_action_4)
-  , (6,alex_action_4)
-  , (5,alex_action_14)
-  , (4,alex_action_5)
-  , (3,alex_action_13)
-  , (2,alex_action_12)
-  , (1,alex_action_11)
-  , (0,alex_action_10)
-  ]
-
-alex_action_3 = tok (eitherResIdent TV)
-alex_action_4 = tok (eitherResIdent T_Bytes)
-alex_action_5 = tok (eitherResIdent T_Function)
-alex_action_6 = tok (eitherResIdent T_LabelId)
-alex_action_7 = tok (eitherResIdent T_AlphaIndex)
-alex_action_8 = tok (eitherResIdent T_LabelMetaId)
-alex_action_9 = tok (eitherResIdent T_TailMetaId)
-alex_action_10 = tok (eitherResIdent T_BindingsMetaId)
-alex_action_11 = tok (eitherResIdent T_ObjectMetaId)
-alex_action_12 = tok (eitherResIdent T_BytesMetaId)
-alex_action_13 = tok (eitherResIdent T_MetaFunctionName)
-alex_action_14 = tok (eitherResIdent TV)
-alex_action_15 = tok (TL . unescapeInitTail)
-alex_action_16 = tok TI
-alex_action_17 = tok TD
-
-#define ALEX_NOPRED 1
--- -----------------------------------------------------------------------------
--- ALEX TEMPLATE
---
--- This code is in the PUBLIC DOMAIN; you may copy it freely and use
--- it for any purpose whatsoever.
-
--- -----------------------------------------------------------------------------
--- INTERNALS and main scanner engine
-
-#ifdef ALEX_GHC
-#  define ILIT(n) n#
-#  define IBOX(n) (I# (n))
-#  define FAST_INT Int#
--- Do not remove this comment. Required to fix CPP parsing when using GCC and a clang-compiled alex.
-#  if __GLASGOW_HASKELL__ > 706
-#    define GTE(n,m) (tagToEnum# (n >=# m))
-#    define EQ(n,m) (tagToEnum# (n ==# m))
-#  else
-#    define GTE(n,m) (n >=# m)
-#    define EQ(n,m) (n ==# m)
-#  endif
-#  define PLUS(n,m) (n +# m)
-#  define MINUS(n,m) (n -# m)
-#  define TIMES(n,m) (n *# m)
-#  define NEGATE(n) (negateInt# (n))
-#  define IF_GHC(x) (x)
-#else
-#  define ILIT(n) (n)
-#  define IBOX(n) (n)
-#  define FAST_INT Int
-#  define GTE(n,m) (n >= m)
-#  define EQ(n,m) (n == m)
-#  define PLUS(n,m) (n + m)
-#  define MINUS(n,m) (n - m)
-#  define TIMES(n,m) (n * m)
-#  define NEGATE(n) (negate (n))
-#  define IF_GHC(x)
-#endif
-
-#ifdef ALEX_GHC
-data AlexAddr = AlexA# Addr#
--- Do not remove this comment. Required to fix CPP parsing when using GCC and a clang-compiled alex.
-#if __GLASGOW_HASKELL__ < 503
-uncheckedShiftL# = shiftL#
-#endif
-
-{-# INLINE alexIndexInt16OffAddr #-}
-alexIndexInt16OffAddr :: AlexAddr -> Int# -> Int#
-alexIndexInt16OffAddr (AlexA# arr) off =
-#ifdef WORDS_BIGENDIAN
-  narrow16Int# i
-  where
-        i    = word2Int# ((high `uncheckedShiftL#` 8#) `or#` low)
-        high = int2Word# (ord# (indexCharOffAddr# arr (off' +# 1#)))
-        low  = int2Word# (ord# (indexCharOffAddr# arr off'))
-        off' = off *# 2#
-#else
-#if __GLASGOW_HASKELL__ >= 901
-  int16ToInt#
-#endif
-    (indexInt16OffAddr# arr off)
-#endif
-#else
-alexIndexInt16OffAddr arr off = arr ! off
-#endif
-
-#ifdef ALEX_GHC
-{-# INLINE alexIndexInt32OffAddr #-}
-alexIndexInt32OffAddr :: AlexAddr -> Int# -> Int#
-alexIndexInt32OffAddr (AlexA# arr) off =
-#ifdef WORDS_BIGENDIAN
-  narrow32Int# i
-  where
-   i    = word2Int# ((b3 `uncheckedShiftL#` 24#) `or#`
-                     (b2 `uncheckedShiftL#` 16#) `or#`
-                     (b1 `uncheckedShiftL#` 8#) `or#` b0)
-   b3   = int2Word# (ord# (indexCharOffAddr# arr (off' +# 3#)))
-   b2   = int2Word# (ord# (indexCharOffAddr# arr (off' +# 2#)))
-   b1   = int2Word# (ord# (indexCharOffAddr# arr (off' +# 1#)))
-   b0   = int2Word# (ord# (indexCharOffAddr# arr off'))
-   off' = off *# 4#
-#else
-#if __GLASGOW_HASKELL__ >= 901
-  int32ToInt#
-#endif
-    (indexInt32OffAddr# arr off)
-#endif
-#else
-alexIndexInt32OffAddr arr off = arr ! off
-#endif
-
-#ifdef ALEX_GHC
-
-#if __GLASGOW_HASKELL__ < 503
-quickIndex arr i = arr ! i
-#else
--- GHC >= 503, unsafeAt is available from Data.Array.Base.
-quickIndex = unsafeAt
-#endif
-#else
-quickIndex arr i = arr ! i
-#endif
-
--- -----------------------------------------------------------------------------
--- Main lexing routines
-
-data AlexReturn a
-  = AlexEOF
-  | AlexError  !AlexInput
-  | AlexSkip   !AlexInput !Int
-  | AlexToken  !AlexInput !Int a
-
--- alexScan :: AlexInput -> StartCode -> AlexReturn a
-alexScan input__ IBOX(sc)
-  = alexScanUser undefined input__ IBOX(sc)
-
-alexScanUser user__ input__ IBOX(sc)
-  = case alex_scan_tkn user__ input__ ILIT(0) input__ sc AlexNone of
-  (AlexNone, input__') ->
-    case alexGetByte input__ of
-      Nothing ->
-#ifdef ALEX_DEBUG
-                                   trace ("End of input.") $
-#endif
-                                   AlexEOF
-      Just _ ->
-#ifdef ALEX_DEBUG
-                                   trace ("Error.") $
-#endif
-                                   AlexError input__'
-
-  (AlexLastSkip input__'' len, _) ->
-#ifdef ALEX_DEBUG
-    trace ("Skipping.") $
-#endif
-    AlexSkip input__'' len
-
-  (AlexLastAcc k input__''' len, _) ->
-#ifdef ALEX_DEBUG
-    trace ("Accept.") $
-#endif
-    AlexToken input__''' len (alex_actions ! k)
-
-
--- Push the input through the DFA, remembering the most recent accepting
--- state it encountered.
-
-alex_scan_tkn user__ orig_input len input__ s last_acc =
-  input__ `seq` -- strict in the input
-  let
-  new_acc = (check_accs (alex_accept `quickIndex` IBOX(s)))
-  in
-  new_acc `seq`
-  case alexGetByte input__ of
-     Nothing -> (new_acc, input__)
-     Just (c, new_input) ->
-#ifdef ALEX_DEBUG
-      trace ("State: " ++ show IBOX(s) ++ ", char: " ++ show c) $
-#endif
-      case fromIntegral c of { IBOX(ord_c) ->
-        let
-                base   = alexIndexInt32OffAddr alex_base s
-                offset = PLUS(base,ord_c)
-
-                new_s = if GTE(offset,ILIT(0))
-                          && let check  = alexIndexInt16OffAddr alex_check offset
-                             in  EQ(check,ord_c)
-                          then alexIndexInt16OffAddr alex_table offset
-                          else alexIndexInt16OffAddr alex_deflt s
-        in
-        case new_s of
-            ILIT(-1) -> (new_acc, input__)
-                -- on an error, we want to keep the input *before* the
-                -- character that failed, not after.
-            _ -> alex_scan_tkn user__ orig_input
-#ifdef ALEX_LATIN1
-                   PLUS(len,ILIT(1))
-                   -- issue 119: in the latin1 encoding, *each* byte is one character
-#else
-                   (if c < 0x80 || c >= 0xC0 then PLUS(len,ILIT(1)) else len)
-                   -- note that the length is increased ONLY if this is the 1st byte in a char encoding)
-#endif
-                   new_input new_s new_acc
-      }
-  where
-        check_accs (AlexAccNone) = last_acc
-        check_accs (AlexAcc a  ) = AlexLastAcc a input__ IBOX(len)
-        check_accs (AlexAccSkip) = AlexLastSkip  input__ IBOX(len)
-#ifndef ALEX_NOPRED
-        check_accs (AlexAccPred a predx rest)
-           | predx user__ orig_input IBOX(len) input__
-           = AlexLastAcc a input__ IBOX(len)
-           | otherwise
-           = check_accs rest
-        check_accs (AlexAccSkipPred predx rest)
-           | predx user__ orig_input IBOX(len) input__
-           = AlexLastSkip input__ IBOX(len)
-           | otherwise
-           = check_accs rest
-#endif
-
-data AlexLastAcc
-  = AlexNone
-  | AlexLastAcc !Int !AlexInput !Int
-  | AlexLastSkip     !AlexInput !Int
-
-data AlexAcc user
-  = AlexAccNone
-  | AlexAcc Int
-  | AlexAccSkip
-#ifndef ALEX_NOPRED
-  | AlexAccPred Int (AlexAccPred user) (AlexAcc user)
-  | AlexAccSkipPred (AlexAccPred user) (AlexAcc user)
-
-type AlexAccPred user = user -> AlexInput -> Int -> AlexInput -> Bool
-
--- -----------------------------------------------------------------------------
--- Predicates on a rule
-
-alexAndPred p1 p2 user__ in1 len in2
-  = p1 user__ in1 len in2 && p2 user__ in1 len in2
-
---alexPrevCharIsPred :: Char -> AlexAccPred _
-alexPrevCharIs c _ input__ _ _ = c == alexInputPrevChar input__
-
-alexPrevCharMatches f _ input__ _ _ = f (alexInputPrevChar input__)
-
---alexPrevCharIsOneOfPred :: Array Char Bool -> AlexAccPred _
-alexPrevCharIsOneOf arr _ input__ _ _ = arr ! alexInputPrevChar input__
-
---alexRightContext :: Int -> AlexAccPred _
-alexRightContext IBOX(sc) user__ _ _ input__ =
-     case alex_scan_tkn user__ input__ ILIT(0) input__ sc AlexNone of
-          (AlexNone, _) -> False
-          _ -> True
-        -- TODO: there's no need to find the longest
-        -- match when checking the right context, just
-        -- the first match will do.
-#endif
-{-# LINE 104 "Lex.x" #-}
--- | Create a token with position.
-tok :: (String -> Tok) -> (Posn -> String -> Token)
-tok f p = PT p . f
-
--- | Token without position.
-data Tok
-  = TK {-# UNPACK #-} !TokSymbol  -- ^ Reserved word or symbol.
-  | TL !String                    -- ^ String literal.
-  | TI !String                    -- ^ Integer literal.
-  | TV !String                    -- ^ Identifier.
-  | TD !String                    -- ^ Float literal.
-  | TC !String                    -- ^ Character literal.
-  | T_Bytes !String
-  | T_Function !String
-  | T_LabelId !String
-  | T_AlphaIndex !String
-  | T_LabelMetaId !String
-  | T_TailMetaId !String
-  | T_BindingsMetaId !String
-  | T_ObjectMetaId !String
-  | T_BytesMetaId !String
-  | T_MetaFunctionName !String
-  deriving (Eq, Show, Ord)
-
--- | Smart constructor for 'Tok' for the sake of backwards compatibility.
-pattern TS :: String -> Int -> Tok
-pattern TS t i = TK (TokSymbol t i)
-
--- | Keyword or symbol tokens have a unique ID.
-data TokSymbol = TokSymbol
-  { tsText :: String
-      -- ^ Keyword or symbol text.
-  , tsID   :: !Int
-      -- ^ Unique ID.
-  } deriving (Show)
-
--- | Keyword/symbol equality is determined by the unique ID.
-instance Eq  TokSymbol where (==)    = (==)    `on` tsID
-
--- | Keyword/symbol ordering is determined by the unique ID.
-instance Ord TokSymbol where compare = compare `on` tsID
-
--- | Token with position.
-data Token
-  = PT  Posn Tok
-  | Err Posn
-  deriving (Eq, Show, Ord)
-
--- | Pretty print a position.
-printPosn :: Posn -> String
-printPosn (Pn _ l c) = "line " ++ show l ++ ", column " ++ show c
-
--- | Pretty print the position of the first token in the list.
-tokenPos :: [Token] -> String
-tokenPos (t:_) = printPosn (tokenPosn t)
-tokenPos []    = "end of file"
-
--- | Get the position of a token.
-tokenPosn :: Token -> Posn
-tokenPosn (PT p _) = p
-tokenPosn (Err p)  = p
-
--- | Get line and column of a token.
-tokenLineCol :: Token -> (Int, Int)
-tokenLineCol = posLineCol . tokenPosn
-
--- | Get line and column of a position.
-posLineCol :: Posn -> (Int, Int)
-posLineCol (Pn _ l c) = (l,c)
-
--- | Convert a token into "position token" form.
-mkPosToken :: Token -> ((Int, Int), String)
-mkPosToken t = (tokenLineCol t, tokenText t)
-
--- | Convert a token to its text.
-tokenText :: Token -> String
-tokenText t = case t of
-  PT _ (TS s _) -> s
-  PT _ (TL s)   -> show s
-  PT _ (TI s)   -> s
-  PT _ (TV s)   -> s
-  PT _ (TD s)   -> s
-  PT _ (TC s)   -> s
-  Err _         -> "#error"
-  PT _ (T_Bytes s) -> s
-  PT _ (T_Function s) -> s
-  PT _ (T_LabelId s) -> s
-  PT _ (T_AlphaIndex s) -> s
-  PT _ (T_LabelMetaId s) -> s
-  PT _ (T_TailMetaId s) -> s
-  PT _ (T_BindingsMetaId s) -> s
-  PT _ (T_ObjectMetaId s) -> s
-  PT _ (T_BytesMetaId s) -> s
-  PT _ (T_MetaFunctionName s) -> s
-
--- | Convert a token to a string.
-prToken :: Token -> String
-prToken t = tokenText t
-
--- | Finite map from text to token organized as binary search tree.
-data BTree
-  = N -- ^ Nil (leaf).
-  | B String Tok BTree BTree
-      -- ^ Binary node.
-  deriving (Show)
-
--- | Convert potential keyword into token or use fallback conversion.
-eitherResIdent :: (String -> Tok) -> String -> Tok
-eitherResIdent tv s = treeFind resWords
-  where
-  treeFind N = tv s
-  treeFind (B a t left right) =
-    case compare s a of
-      LT -> treeFind left
-      GT -> treeFind right
-      EQ -> t
-
--- | The keywords and symbols of the language organized as binary search tree.
-resWords :: BTree
-resWords =
-  b "\955" 12
-    (b "[" 6
-       (b "*" 3 (b ")" 2 (b "(" 1 N N) N) (b "." 5 (b "," 4 N N) N))
-       (b "}" 9
-          (b "{" 8 (b "]" 7 N N) N) (b "\934" 11 (b "\916" 10 N N) N)))
-    (b "\8869" 18
-       (b "\966" 15
-          (b "\961" 14 (b "\958" 13 N N) N)
-          (b "\8709" 17 (b "\8614" 16 N N) N))
-       (b "\10214" 21
-          (b "\8969" 20 (b "\8968" 19 N N) N)
-          (b "\10509" 23 (b "\10215" 22 N N) N)))
+alex_base = listArray (0 :: Int, 196)
+  [ -8
+  , -153
+  , -159
+  , 91
+  , 219
+  , 475
+  , 594
+  , 0
+  , 0
+  , 0
+  , 707
+  , -72
+  , 771
+  , -150
+  , -156
+  , 899
+  , 1027
+  , 1283
+  , 1402
+  , 0
+  , 0
+  , 0
+  , 1515
+  , 1580
+  , 1644
+  , -147
+  , -152
+  , 1772
+  , 1900
+  , 2156
+  , 2275
+  , 0
+  , 0
+  , 0
+  , 2388
+  , 2453
+  , 2517
+  , -146
+  , -149
+  , 2645
+  , 2773
+  , 3029
+  , 3148
+  , 140
+  , 560
+  , 610
+  , 623
+  , 3276
+  , 593
+  , 1368
+  , 640
+  , 650
+  , -117
+  , -185
+  , -25
+  , 3340
+  , 3404
+  , 1422
+  , -24
+  , 1448
+  , 2274
+  , -113
+  , 2169
+  , -143
+  , 1292
+  , -139
+  , 0
+  , 0
+  , 0
+  , 3453
+  , 3518
+  , 3582
+  , 2253
+  , 3710
+  , 3838
+  , 4094
+  , 4188
+  , 0
+  , 4097
+  , 4405
+  , 0
+  , 0
+  , 0
+  , 4458
+  , 4337
+  , 4522
+  , 2262
+  , 4650
+  , 4778
+  , 5034
+  , 5152
+  , 0
+  , -12
+  , 0
+  , 5398
+  , 5654
+  , 5655
+  , 5783
+  , 5217
+  , 5848
+  , 5961
+  , 0
+  , 0
+  , 0
+  , 2279
+  , 6207
+  , 6463
+  , 6464
+  , 6592
+  , 6656
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+  , 252
+  , 253
+  , 254
+  , 255
+  , 191
+  , 192
+  , 193
+  , 194
+  , 195
+  , 196
+  , 197
+  , 198
+  , 199
+  , 200
+  , 201
+  , 202
+  , 203
+  , 204
+  , 205
+  , 206
+  , 207
+  , 208
+  , 209
+  , 210
+  , 211
+  , 212
+  , 213
+  , 214
+  , 215
+  , 216
+  , 217
+  , 218
+  , 219
+  , 220
+  , 221
+  , 222
+  , 223
+  , 224
+  , 225
+  , 226
+  , 227
+  , 228
+  , 229
+  , 230
+  , 231
+  , 232
+  , 233
+  , 234
+  , 235
+  , 236
+  , 237
+  , 238
+  , 239
+  , 240
+  , 241
+  , 242
+  , 243
+  , 244
+  , 245
+  , 246
+  , 247
+  , 248
+  , 249
+  , 250
+  , 251
+  , 252
+  , 253
+  , 254
+  , 255
+  , 143
+  , 144
+  , 145
+  , 146
+  , 147
+  , 148
+  , 149
+  , 150
+  , 151
+  , 152
+  , 153
+  , 154
+  , 155
+  , 156
+  , 157
+  , 158
+  , 159
+  , 160
+  , 161
+  , 162
+  , 163
+  , 164
+  , 165
+  , 166
+  , 167
+  , 168
+  , 169
+  , 170
+  , 171
+  , 172
+  , 173
+  , 174
+  , 175
+  , 176
+  , 177
+  , 178
+  , 179
+  , 180
+  , 181
+  , 182
+  , 183
+  , 184
+  , 185
+  , 186
+  , 187
+  , 188
+  , 189
+  , 190
+  , 191
+  , 192
+  , 193
+  , 194
+  , 195
+  , 196
+  , 197
+  , 198
+  , 199
+  , 200
+  , 201
+  , 202
+  , 203
+  , 204
+  , 205
+  , 206
+  , 207
+  , 208
+  , 209
+  , 210
+  , 211
+  , 212
+  , 213
+  , 214
+  , 215
+  , 216
+  , 217
+  , 218
+  , 219
+  , 220
+  , 221
+  , 222
+  , 223
+  , 224
+  , 225
+  , 226
+  , 227
+  , 228
+  , 229
+  , 230
+  , 231
+  , 232
+  , 233
+  , 234
+  , 235
+  , 236
+  , 237
+  , 238
+  , 239
+  , 240
+  , 241
+  , 242
+  , 243
+  , 244
+  , 245
+  , 246
+  , 247
+  , 248
+  , 249
+  , 250
+  , 251
+  , 252
+  , 253
+  , 254
+  , 255
+  , 192
+  , 193
+  , 194
+  , 195
+  , 196
+  , 197
+  , 198
+  , 199
+  , 200
+  , 201
+  , 202
+  , 203
+  , 204
+  , 205
+  , 206
+  , 207
+  , 208
+  , 209
+  , 210
+  , 211
+  , 212
+  , 213
+  , 214
+  , 215
+  , 216
+  , 217
+  , 218
+  , 219
+  , 220
+  , 221
+  , 222
+  , 223
+  , 224
+  , 225
+  , 226
+  , 227
+  , 228
+  , 229
+  , 230
+  , 231
+  , 232
+  , 233
+  , 234
+  , 235
+  , 236
+  , 237
+  , 238
+  , 239
+  , 240
+  , 241
+  , 242
+  , 243
+  , 244
+  , 245
+  , 246
+  , 247
+  , 248
+  , 249
+  , 250
+  , 251
+  , 252
+  , 253
+  , 254
+  , 255
+  , 191
+  , 192
+  , 193
+  , 194
+  , 195
+  , 196
+  , 197
+  , 198
+  , 199
+  , 200
+  , 201
+  , 202
+  , 203
+  , 204
+  , 205
+  , 206
+  , 207
+  , 208
+  , 209
+  , 210
+  , 211
+  , 212
+  , 213
+  , 214
+  , 215
+  , 216
+  , 217
+  , 218
+  , 219
+  , 220
+  , 221
+  , 222
+  , 223
+  , 224
+  , 225
+  , 226
+  , 227
+  , 228
+  , 229
+  , 230
+  , 231
+  , 232
+  , 233
+  , 234
+  , 235
+  , 236
+  , 237
+  , 238
+  , 239
+  , 240
+  , 241
+  , 242
+  , 243
+  , 244
+  , 245
+  , 246
+  , 247
+  , 248
+  , 249
+  , 250
+  , 251
+  , 252
+  , 253
+  , 254
+  , 255
+  , 143
+  , 144
+  , 145
+  , 146
+  , 147
+  , 148
+  , 149
+  , 150
+  , 151
+  , 152
+  , 153
+  , 154
+  , 155
+  , 156
+  , 157
+  , 158
+  , 159
+  , 160
+  , 161
+  , 162
+  , 163
+  , 164
+  , 165
+  , 166
+  , 167
+  , 168
+  , 169
+  , 170
+  , 171
+  , 172
+  , 173
+  , 174
+  , 175
+  , 176
+  , 177
+  , 178
+  , 179
+  , 180
+  , 181
+  , 182
+  , 183
+  , 184
+  , 185
+  , 186
+  , 187
+  , 188
+  , 189
+  , 190
+  , 191
+  , 192
+  , 193
+  , 194
+  , 195
+  , 196
+  , 197
+  , 198
+  , 199
+  , 200
+  , 201
+  , 202
+  , 203
+  , 204
+  , 205
+  , 206
+  , 207
+  , 208
+  , 209
+  , 210
+  , 211
+  , 212
+  , 213
+  , 214
+  , 215
+  , 216
+  , 217
+  , 218
+  , 219
+  , 220
+  , 221
+  , 222
+  , 223
+  , 224
+  , 225
+  , 226
+  , 227
+  , 228
+  , 229
+  , 230
+  , 231
+  , 232
+  , 233
+  , 234
+  , 235
+  , 236
+  , 237
+  , 238
+  , 239
+  , 240
+  , 241
+  , 242
+  , 243
+  , 244
+  , 245
+  , 246
+  , 247
+  , 248
+  , 249
+  , 250
+  , 251
+  , 252
+  , 253
+  , 254
+  , 255
+  ]
+
+alex_deflt :: Array Int Int
+alex_deflt = listArray (0 :: Int, 196)
+  [ -1
+  , 192
+  , 6
+  , -1
+  , -1
+  , 6
+  , 6
+  , 8
+  , 9
+  , 18
+  , 8
+  , 9
+  , 18
+  , 9
+  , 18
+  , -1
+  , -1
+  , 18
+  , 18
+  , 20
+  , 21
+  , 30
+  , 20
+  , 21
+  , 30
+  , 21
+  , 30
+  , -1
+  , -1
+  , 30
+  , 30
+  , 32
+  , 33
+  , 42
+  , 32
+  , 33
+  , 42
+  , 33
+  , 42
+  , -1
+  , -1
+  , 42
+  , 42
+  , -1
+  , -1
+  , -1
+  , -1
+  , 151
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , 138
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , 67
+  , 68
+  , 76
+  , 67
+  , 68
+  , 76
+  , -1
+  , -1
+  , -1
+  , 76
+  , 76
+  , -1
+  , -1
+  , -1
+  , 81
+  , 82
+  , 90
+  , 81
+  , 82
+  , 90
+  , -1
+  , -1
+  , -1
+  , 90
+  , 90
+  , -1
+  , -1
+  , 192
+  , 94
+  , 94
+  , -1
+  , -1
+  , 94
+  , 101
+  , 102
+  , 94
+  , 101
+  , 102
+  , -1
+  , 105
+  , 105
+  , -1
+  , -1
+  , 105
+  , 112
+  , 113
+  , 105
+  , 112
+  , 113
+  , -1
+  , 117
+  , 117
+  , 117
+  , -1
+  , -1
+  , 117
+  , 124
+  , 125
+  , 117
+  , 124
+  , 125
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , -1
+  , 138
+  , 138
+  , -1
+  , -1
+  , 138
+  , 147
+  , 138
+  , 147
+  , 148
+  , 138
+  , 147
+  , 148
+  , -1
+  , 151
+  , 151
+  , -1
+  , -1
+  , 151
+  , 160
+  , 151
+  , 160
+  , 161
+  , 151
+  , 160
+  , 161
+  , -1
+  , -1
+  , -1
+  , -1
+  , 167
+  , -1
+  , 167
+  , -1
+  , -1
+  , 167
+  , 177
+  , 167
+  , 177
+  , 178
+  , 167
+  , 177
+  , 178
+  , 180
+  , 180
+  , -1
+  , -1
+  , 180
+  , 189
+  , 180
+  , 189
+  , 190
+  , 180
+  , 189
+  , 190
+  , 6
+  , 93
+  , 6
+  , 192
+  , 93
+  ]
+
+alex_accept = listArray (0 :: Int, 196)
+  [ AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 26
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 25
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 24
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 23
+  , AlexAcc 22
+  , AlexAcc 21
+  , AlexAcc 20
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 19
+  , AlexAccNone
+  , AlexAcc 18
+  , AlexAccNone
+  , AlexAcc 17
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 16
+  , AlexAcc 15
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 14
+  , AlexAccNone
+  , AlexAcc 13
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 12
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccSkip
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccSkip
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccSkip
+  , AlexAcc 11
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 10
+  , AlexAccNone
+  , AlexAcc 9
+  , AlexAcc 8
+  , AlexAcc 7
+  , AlexAcc 6
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 5
+  , AlexAcc 4
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 3
+  , AlexAcc 2
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 1
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAcc 0
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  , AlexAccNone
+  ]
+
+alex_actions = array (0 :: Int, 27)
+  [ (26,alex_action_10)
+  , (25,alex_action_11)
+  , (24,alex_action_12)
+  , (23,alex_action_13)
+  , (22,alex_action_14)
+  , (21,alex_action_14)
+  , (20,alex_action_14)
+  , (19,alex_action_15)
+  , (18,alex_action_15)
+  , (17,alex_action_3)
+  , (16,alex_action_4)
+  , (15,alex_action_4)
+  , (14,alex_action_16)
+  , (13,alex_action_17)
+  , (12,alex_action_18)
+  , (11,alex_action_3)
+  , (10,alex_action_4)
+  , (9,alex_action_5)
+  , (8,alex_action_5)
+  , (7,alex_action_5)
+  , (6,alex_action_5)
+  , (5,alex_action_6)
+  , (4,alex_action_6)
+  , (3,alex_action_7)
+  , (2,alex_action_7)
+  , (1,alex_action_8)
+  , (0,alex_action_9)
+  ]
+
+alex_action_3 = tok (eitherResIdent TV)
+alex_action_4 = tok (eitherResIdent T_Bytes)
+alex_action_5 = tok (eitherResIdent T_Function)
+alex_action_6 = tok (eitherResIdent T_LabelId)
+alex_action_7 = tok (eitherResIdent T_AlphaIndex)
+alex_action_8 = tok (eitherResIdent T_LabelMetaId)
+alex_action_9 = tok (eitherResIdent T_TailMetaId)
+alex_action_10 = tok (eitherResIdent T_BindingsMetaId)
+alex_action_11 = tok (eitherResIdent T_ObjectMetaId)
+alex_action_12 = tok (eitherResIdent T_BytesMetaId)
+alex_action_13 = tok (eitherResIdent T_MetaFunctionName)
+alex_action_14 = tok (eitherResIdent T_IntegerSigned)
+alex_action_15 = tok (eitherResIdent T_DoubleSigned)
+alex_action_16 = tok (eitherResIdent T_StringRaw)
+alex_action_17 = tok (eitherResIdent TV)
+alex_action_18 = tok (TL . unescapeInitTail)
+alex_action_19 = tok TI
+alex_action_20 = tok TD
+
+#define ALEX_NOPRED 1
+-- -----------------------------------------------------------------------------
+-- ALEX TEMPLATE
+--
+-- This code is in the PUBLIC DOMAIN; you may copy it freely and use
+-- it for any purpose whatsoever.
+
+-- -----------------------------------------------------------------------------
+-- INTERNALS and main scanner engine
+
+#ifdef ALEX_GHC
+#  define ILIT(n) n#
+#  define IBOX(n) (I# (n))
+#  define FAST_INT Int#
+-- Do not remove this comment. Required to fix CPP parsing when using GCC and a clang-compiled alex.
+#  if __GLASGOW_HASKELL__ > 706
+#    define GTE(n,m) (tagToEnum# (n >=# m))
+#    define EQ(n,m) (tagToEnum# (n ==# m))
+#  else
+#    define GTE(n,m) (n >=# m)
+#    define EQ(n,m) (n ==# m)
+#  endif
+#  define PLUS(n,m) (n +# m)
+#  define MINUS(n,m) (n -# m)
+#  define TIMES(n,m) (n *# m)
+#  define NEGATE(n) (negateInt# (n))
+#  define IF_GHC(x) (x)
+#else
+#  define ILIT(n) (n)
+#  define IBOX(n) (n)
+#  define FAST_INT Int
+#  define GTE(n,m) (n >= m)
+#  define EQ(n,m) (n == m)
+#  define PLUS(n,m) (n + m)
+#  define MINUS(n,m) (n - m)
+#  define TIMES(n,m) (n * m)
+#  define NEGATE(n) (negate (n))
+#  define IF_GHC(x)
+#endif
+
+#ifdef ALEX_GHC
+data AlexAddr = AlexA# Addr#
+-- Do not remove this comment. Required to fix CPP parsing when using GCC and a clang-compiled alex.
+#if __GLASGOW_HASKELL__ < 503
+uncheckedShiftL# = shiftL#
+#endif
+
+{-# INLINE alexIndexInt16OffAddr #-}
+alexIndexInt16OffAddr :: AlexAddr -> Int# -> Int#
+alexIndexInt16OffAddr (AlexA# arr) off =
+#ifdef WORDS_BIGENDIAN
+  narrow16Int# i
+  where
+        i    = word2Int# ((high `uncheckedShiftL#` 8#) `or#` low)
+        high = int2Word# (ord# (indexCharOffAddr# arr (off' +# 1#)))
+        low  = int2Word# (ord# (indexCharOffAddr# arr off'))
+        off' = off *# 2#
+#else
+#if __GLASGOW_HASKELL__ >= 901
+  int16ToInt#
+#endif
+    (indexInt16OffAddr# arr off)
+#endif
+#else
+alexIndexInt16OffAddr arr off = arr ! off
+#endif
+
+#ifdef ALEX_GHC
+{-# INLINE alexIndexInt32OffAddr #-}
+alexIndexInt32OffAddr :: AlexAddr -> Int# -> Int#
+alexIndexInt32OffAddr (AlexA# arr) off =
+#ifdef WORDS_BIGENDIAN
+  narrow32Int# i
+  where
+   i    = word2Int# ((b3 `uncheckedShiftL#` 24#) `or#`
+                     (b2 `uncheckedShiftL#` 16#) `or#`
+                     (b1 `uncheckedShiftL#` 8#) `or#` b0)
+   b3   = int2Word# (ord# (indexCharOffAddr# arr (off' +# 3#)))
+   b2   = int2Word# (ord# (indexCharOffAddr# arr (off' +# 2#)))
+   b1   = int2Word# (ord# (indexCharOffAddr# arr (off' +# 1#)))
+   b0   = int2Word# (ord# (indexCharOffAddr# arr off'))
+   off' = off *# 4#
+#else
+#if __GLASGOW_HASKELL__ >= 901
+  int32ToInt#
+#endif
+    (indexInt32OffAddr# arr off)
+#endif
+#else
+alexIndexInt32OffAddr arr off = arr ! off
+#endif
+
+#ifdef ALEX_GHC
+
+#if __GLASGOW_HASKELL__ < 503
+quickIndex arr i = arr ! i
+#else
+-- GHC >= 503, unsafeAt is available from Data.Array.Base.
+quickIndex = unsafeAt
+#endif
+#else
+quickIndex arr i = arr ! i
+#endif
+
+-- -----------------------------------------------------------------------------
+-- Main lexing routines
+
+data AlexReturn a
+  = AlexEOF
+  | AlexError  !AlexInput
+  | AlexSkip   !AlexInput !Int
+  | AlexToken  !AlexInput !Int a
+
+-- alexScan :: AlexInput -> StartCode -> AlexReturn a
+alexScan input__ IBOX(sc)
+  = alexScanUser undefined input__ IBOX(sc)
+
+alexScanUser user__ input__ IBOX(sc)
+  = case alex_scan_tkn user__ input__ ILIT(0) input__ sc AlexNone of
+  (AlexNone, input__') ->
+    case alexGetByte input__ of
+      Nothing ->
+#ifdef ALEX_DEBUG
+                                   trace ("End of input.") $
+#endif
+                                   AlexEOF
+      Just _ ->
+#ifdef ALEX_DEBUG
+                                   trace ("Error.") $
+#endif
+                                   AlexError input__'
+
+  (AlexLastSkip input__'' len, _) ->
+#ifdef ALEX_DEBUG
+    trace ("Skipping.") $
+#endif
+    AlexSkip input__'' len
+
+  (AlexLastAcc k input__''' len, _) ->
+#ifdef ALEX_DEBUG
+    trace ("Accept.") $
+#endif
+    AlexToken input__''' len (alex_actions ! k)
+
+
+-- Push the input through the DFA, remembering the most recent accepting
+-- state it encountered.
+
+alex_scan_tkn user__ orig_input len input__ s last_acc =
+  input__ `seq` -- strict in the input
+  let
+  new_acc = (check_accs (alex_accept `quickIndex` IBOX(s)))
+  in
+  new_acc `seq`
+  case alexGetByte input__ of
+     Nothing -> (new_acc, input__)
+     Just (c, new_input) ->
+#ifdef ALEX_DEBUG
+      trace ("State: " ++ show IBOX(s) ++ ", char: " ++ show c) $
+#endif
+      case fromIntegral c of { IBOX(ord_c) ->
+        let
+                base   = alexIndexInt32OffAddr alex_base s
+                offset = PLUS(base,ord_c)
+
+                new_s = if GTE(offset,ILIT(0))
+                          && let check  = alexIndexInt16OffAddr alex_check offset
+                             in  EQ(check,ord_c)
+                          then alexIndexInt16OffAddr alex_table offset
+                          else alexIndexInt16OffAddr alex_deflt s
+        in
+        case new_s of
+            ILIT(-1) -> (new_acc, input__)
+                -- on an error, we want to keep the input *before* the
+                -- character that failed, not after.
+            _ -> alex_scan_tkn user__ orig_input
+#ifdef ALEX_LATIN1
+                   PLUS(len,ILIT(1))
+                   -- issue 119: in the latin1 encoding, *each* byte is one character
+#else
+                   (if c < 0x80 || c >= 0xC0 then PLUS(len,ILIT(1)) else len)
+                   -- note that the length is increased ONLY if this is the 1st byte in a char encoding)
+#endif
+                   new_input new_s new_acc
+      }
+  where
+        check_accs (AlexAccNone) = last_acc
+        check_accs (AlexAcc a  ) = AlexLastAcc a input__ IBOX(len)
+        check_accs (AlexAccSkip) = AlexLastSkip  input__ IBOX(len)
+#ifndef ALEX_NOPRED
+        check_accs (AlexAccPred a predx rest)
+           | predx user__ orig_input IBOX(len) input__
+           = AlexLastAcc a input__ IBOX(len)
+           | otherwise
+           = check_accs rest
+        check_accs (AlexAccSkipPred predx rest)
+           | predx user__ orig_input IBOX(len) input__
+           = AlexLastSkip input__ IBOX(len)
+           | otherwise
+           = check_accs rest
+#endif
+
+data AlexLastAcc
+  = AlexNone
+  | AlexLastAcc !Int !AlexInput !Int
+  | AlexLastSkip     !AlexInput !Int
+
+data AlexAcc user
+  = AlexAccNone
+  | AlexAcc Int
+  | AlexAccSkip
+#ifndef ALEX_NOPRED
+  | AlexAccPred Int (AlexAccPred user) (AlexAcc user)
+  | AlexAccSkipPred (AlexAccPred user) (AlexAcc user)
+
+type AlexAccPred user = user -> AlexInput -> Int -> AlexInput -> Bool
+
+-- -----------------------------------------------------------------------------
+-- Predicates on a rule
+
+alexAndPred p1 p2 user__ in1 len in2
+  = p1 user__ in1 len in2 && p2 user__ in1 len in2
+
+--alexPrevCharIsPred :: Char -> AlexAccPred _
+alexPrevCharIs c _ input__ _ _ = c == alexInputPrevChar input__
+
+alexPrevCharMatches f _ input__ _ _ = f (alexInputPrevChar input__)
+
+--alexPrevCharIsOneOfPred :: Array Char Bool -> AlexAccPred _
+alexPrevCharIsOneOf arr _ input__ _ _ = arr ! alexInputPrevChar input__
+
+--alexRightContext :: Int -> AlexAccPred _
+alexRightContext IBOX(sc) user__ _ _ input__ =
+     case alex_scan_tkn user__ input__ ILIT(0) input__ sc AlexNone of
+          (AlexNone, _) -> False
+          _ -> True
+        -- TODO: there's no need to find the longest
+        -- match when checking the right context, just
+        -- the first match will do.
+#endif
+{-# LINE 116 "Lex.x" #-}
+-- | Create a token with position.
+tok :: (String -> Tok) -> (Posn -> String -> Token)
+tok f p = PT p . f
+
+-- | Token without position.
+data Tok
+  = TK {-# UNPACK #-} !TokSymbol  -- ^ Reserved word or symbol.
+  | TL !String                    -- ^ String literal.
+  | TI !String                    -- ^ Integer literal.
+  | TV !String                    -- ^ Identifier.
+  | TD !String                    -- ^ Float literal.
+  | TC !String                    -- ^ Character literal.
+  | T_Bytes !String
+  | T_Function !String
+  | T_LabelId !String
+  | T_AlphaIndex !String
+  | T_LabelMetaId !String
+  | T_TailMetaId !String
+  | T_BindingsMetaId !String
+  | T_ObjectMetaId !String
+  | T_BytesMetaId !String
+  | T_MetaFunctionName !String
+  | T_IntegerSigned !String
+  | T_DoubleSigned !String
+  | T_StringRaw !String
+  deriving (Eq, Show, Ord)
+
+-- | Smart constructor for 'Tok' for the sake of backwards compatibility.
+pattern TS :: String -> Int -> Tok
+pattern TS t i = TK (TokSymbol t i)
+
+-- | Keyword or symbol tokens have a unique ID.
+data TokSymbol = TokSymbol
+  { tsText :: String
+      -- ^ Keyword or symbol text.
+  , tsID   :: !Int
+      -- ^ Unique ID.
+  } deriving (Show)
+
+-- | Keyword/symbol equality is determined by the unique ID.
+instance Eq  TokSymbol where (==)    = (==)    `on` tsID
+
+-- | Keyword/symbol ordering is determined by the unique ID.
+instance Ord TokSymbol where compare = compare `on` tsID
+
+-- | Token with position.
+data Token
+  = PT  Posn Tok
+  | Err Posn
+  deriving (Eq, Show, Ord)
+
+-- | Pretty print a position.
+printPosn :: Posn -> String
+printPosn (Pn _ l c) = "line " ++ show l ++ ", column " ++ show c
+
+-- | Pretty print the position of the first token in the list.
+tokenPos :: [Token] -> String
+tokenPos (t:_) = printPosn (tokenPosn t)
+tokenPos []    = "end of file"
+
+-- | Get the position of a token.
+tokenPosn :: Token -> Posn
+tokenPosn (PT p _) = p
+tokenPosn (Err p)  = p
+
+-- | Get line and column of a token.
+tokenLineCol :: Token -> (Int, Int)
+tokenLineCol = posLineCol . tokenPosn
+
+-- | Get line and column of a position.
+posLineCol :: Posn -> (Int, Int)
+posLineCol (Pn _ l c) = (l,c)
+
+-- | Convert a token into "position token" form.
+mkPosToken :: Token -> ((Int, Int), String)
+mkPosToken t = (tokenLineCol t, tokenText t)
+
+-- | Convert a token to its text.
+tokenText :: Token -> String
+tokenText t = case t of
+  PT _ (TS s _) -> s
+  PT _ (TL s)   -> show s
+  PT _ (TI s)   -> s
+  PT _ (TV s)   -> s
+  PT _ (TD s)   -> s
+  PT _ (TC s)   -> s
+  Err _         -> "#error"
+  PT _ (T_Bytes s) -> s
+  PT _ (T_Function s) -> s
+  PT _ (T_LabelId s) -> s
+  PT _ (T_AlphaIndex s) -> s
+  PT _ (T_LabelMetaId s) -> s
+  PT _ (T_TailMetaId s) -> s
+  PT _ (T_BindingsMetaId s) -> s
+  PT _ (T_ObjectMetaId s) -> s
+  PT _ (T_BytesMetaId s) -> s
+  PT _ (T_MetaFunctionName s) -> s
+  PT _ (T_IntegerSigned s) -> s
+  PT _ (T_DoubleSigned s) -> s
+  PT _ (T_StringRaw s) -> s
+
+-- | Convert a token to a string.
+prToken :: Token -> String
+prToken t = tokenText t
+
+-- | Finite map from text to token organized as binary search tree.
+data BTree
+  = N -- ^ Nil (leaf).
+  | B String Tok BTree BTree
+      -- ^ Binary node.
+  deriving (Show)
+
+-- | Convert potential keyword into token or use fallback conversion.
+eitherResIdent :: (String -> Tok) -> String -> Tok
+eitherResIdent tv s = treeFind resWords
+  where
+  treeFind N = tv s
+  treeFind (B a t left right) =
+    case compare s a of
+      LT -> treeFind left
+      GT -> treeFind right
+      EQ -> t
+
+-- | The keywords and symbols of the language organized as binary search tree.
+resWords :: BTree
+resWords =
+  b "\934\775" 13
+    (b "]" 7
+       (b "," 4
+          (b ")" 2 (b "(" 1 N N) (b "*" 3 N N)) (b "[" 6 (b "." 5 N N) N))
+       (b "~" 10
+          (b "}" 9 (b "{" 8 N N) N) (b "\934" 12 (b "\916" 11 N N) N)))
+    (b "\8869" 20
+       (b "\966" 17
+          (b "\958" 15 (b "\955" 14 N N) (b "\961" 16 N N))
+          (b "\8709" 19 (b "\8614" 18 N N) N))
+       (b "\10214" 23
+          (b "\8969" 22 (b "\8968" 21 N N) N)
+          (b "\10509" 25 (b "\10215" 24 N N) N)))
   where
   b s n = B bs (TS bs n)
     where
diff --git a/src/Language/EO/Phi/Syntax/Lex.x b/src/Language/EO/Phi/Syntax/Lex.x
--- a/src/Language/EO/Phi/Syntax/Lex.x
+++ b/src/Language/EO/Phi/Syntax/Lex.x
@@ -28,7 +28,7 @@
 
 -- Symbols and non-identifier-like reserved words
 
-@rsyms = \Φ | \ξ | \Δ | \λ | \φ | \ρ | \{ | \⟦ | \⟧ | \} | \( | \) | \. | \⊥ | \[ | \↦ | \] | \⌈ | \, | \⌉ | \* | \∅ | \⤍
+@rsyms = \Φ | \ξ | \Δ | \λ | \φ | \ρ | \{ | \⟦ | \⟧ | \} | \( | \) | \. | \Φ \̇ | \⊥ | \[ | \↦ | \] | \⌈ | \, | \⌉ | \* | \∅ | \⤍ | \~
 
 :-
 
@@ -85,6 +85,18 @@
 \@ [$u # [\t \n \r \  \! \' \( \) \, \- \. \: \; \? \[ \] \{ \| \} \⟦ \⟧]] *
     { tok (eitherResIdent T_MetaFunctionName) }
 
+-- token IntegerSigned
+\- ? $d +
+    { tok (eitherResIdent T_IntegerSigned) }
+
+-- token DoubleSigned
+\- ? $d + \. $d + (e \- ? $d +)?
+    { tok (eitherResIdent T_DoubleSigned) }
+
+-- token StringRaw
+\" ([$u # [\" \\]] | \\ [\" \\ f n r t u]) * \"
+    { tok (eitherResIdent T_StringRaw) }
+
 -- Keywords and Ident
 $l $i*
     { tok (eitherResIdent TV) }
@@ -124,6 +136,9 @@
   | T_ObjectMetaId !String
   | T_BytesMetaId !String
   | T_MetaFunctionName !String
+  | T_IntegerSigned !String
+  | T_DoubleSigned !String
+  | T_StringRaw !String
   deriving (Eq, Show, Ord)
 
 -- | Smart constructor for 'Tok' for the sake of backwards compatibility.
@@ -196,6 +211,9 @@
   PT _ (T_ObjectMetaId s) -> s
   PT _ (T_BytesMetaId s) -> s
   PT _ (T_MetaFunctionName s) -> s
+  PT _ (T_IntegerSigned s) -> s
+  PT _ (T_DoubleSigned s) -> s
+  PT _ (T_StringRaw s) -> s
 
 -- | Convert a token to a string.
 prToken :: Token -> String
@@ -222,18 +240,19 @@
 -- | The keywords and symbols of the language organized as binary search tree.
 resWords :: BTree
 resWords =
-  b "\955" 12
-    (b "[" 6
-       (b "*" 3 (b ")" 2 (b "(" 1 N N) N) (b "." 5 (b "," 4 N N) N))
-       (b "}" 9
-          (b "{" 8 (b "]" 7 N N) N) (b "\934" 11 (b "\916" 10 N N) N)))
-    (b "\8869" 18
-       (b "\966" 15
-          (b "\961" 14 (b "\958" 13 N N) N)
-          (b "\8709" 17 (b "\8614" 16 N N) N))
-       (b "\10214" 21
-          (b "\8969" 20 (b "\8968" 19 N N) N)
-          (b "\10509" 23 (b "\10215" 22 N N) N)))
+  b "\934\775" 13
+    (b "]" 7
+       (b "," 4
+          (b ")" 2 (b "(" 1 N N) (b "*" 3 N N)) (b "[" 6 (b "." 5 N N) N))
+       (b "~" 10
+          (b "}" 9 (b "{" 8 N N) N) (b "\934" 12 (b "\916" 11 N N) N)))
+    (b "\8869" 20
+       (b "\966" 17
+          (b "\958" 15 (b "\955" 14 N N) (b "\961" 16 N N))
+          (b "\8709" 19 (b "\8614" 18 N N) N))
+       (b "\10214" 23
+          (b "\8969" 22 (b "\8968" 21 N N) N)
+          (b "\10509" 25 (b "\10215" 24 N N) N)))
   where
   b s n = B bs (TS bs n)
     where
diff --git a/src/Language/EO/Phi/Syntax/Par.hs b/src/Language/EO/Phi/Syntax/Par.hs
--- a/src/Language/EO/Phi/Syntax/Par.hs
+++ b/src/Language/EO/Phi/Syntax/Par.hs
@@ -11,1403 +11,1733 @@
   , pBinding
   , pListBinding
   , pAttribute
-  , pRuleAttribute
-  , pPeeledObject
-  , pObjectHead
-  , pObjectAction
-  , pListObjectAction
-  ) where
-
-import Prelude
-
-import qualified Language.EO.Phi.Syntax.Abs
-import Language.EO.Phi.Syntax.Lex
-import qualified Data.Array as Happy_Data_Array
-import qualified Data.Bits as Bits
-import Control.Applicative(Applicative(..))
-import Control.Monad (ap)
-
--- parser produced by Happy Version 1.20.1.1
-
-data HappyAbsSyn 
-	= HappyTerminal (Token)
-	| HappyErrorToken Prelude.Int
-	| HappyAbsSyn14 (Double)
-	| HappyAbsSyn15 (Integer)
-	| HappyAbsSyn16 (String)
-	| HappyAbsSyn17 (Language.EO.Phi.Syntax.Abs.Bytes)
-	| HappyAbsSyn18 (Language.EO.Phi.Syntax.Abs.Function)
-	| HappyAbsSyn19 (Language.EO.Phi.Syntax.Abs.LabelId)
-	| HappyAbsSyn20 (Language.EO.Phi.Syntax.Abs.AlphaIndex)
-	| HappyAbsSyn21 (Language.EO.Phi.Syntax.Abs.LabelMetaId)
-	| HappyAbsSyn22 (Language.EO.Phi.Syntax.Abs.TailMetaId)
-	| HappyAbsSyn23 (Language.EO.Phi.Syntax.Abs.BindingsMetaId)
-	| HappyAbsSyn24 (Language.EO.Phi.Syntax.Abs.ObjectMetaId)
-	| HappyAbsSyn25 (Language.EO.Phi.Syntax.Abs.BytesMetaId)
-	| HappyAbsSyn26 (Language.EO.Phi.Syntax.Abs.MetaFunctionName)
-	| HappyAbsSyn27 (Language.EO.Phi.Syntax.Abs.Program)
-	| HappyAbsSyn28 (Language.EO.Phi.Syntax.Abs.MetaId)
-	| HappyAbsSyn29 (Language.EO.Phi.Syntax.Abs.Object)
-	| HappyAbsSyn30 (Language.EO.Phi.Syntax.Abs.Binding)
-	| HappyAbsSyn31 ([Language.EO.Phi.Syntax.Abs.Binding])
-	| HappyAbsSyn32 (Language.EO.Phi.Syntax.Abs.Attribute)
-	| HappyAbsSyn33 (Language.EO.Phi.Syntax.Abs.RuleAttribute)
-	| HappyAbsSyn34 (Language.EO.Phi.Syntax.Abs.PeeledObject)
-	| HappyAbsSyn35 (Language.EO.Phi.Syntax.Abs.ObjectHead)
-	| HappyAbsSyn36 (Language.EO.Phi.Syntax.Abs.ObjectAction)
-	| HappyAbsSyn37 ([Language.EO.Phi.Syntax.Abs.ObjectAction])
-
-{- to allow type-synonyms as our monads (likely
- - with explicitly-specified bind and return)
- - in Haskell98, it seems that with
- - /type M a = .../, then /(HappyReduction M)/
- - is not allowed.  But Happy is a
- - code-generator that can just substitute it.
-type HappyReduction m = 
-	   Prelude.Int 
-	-> (Token)
-	-> HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> m HappyAbsSyn)
-	-> [HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> m HappyAbsSyn)] 
-	-> HappyStk HappyAbsSyn 
-	-> [(Token)] -> m HappyAbsSyn
--}
-
-action_0,
- action_1,
- action_2,
- action_3,
- action_4,
- action_5,
- action_6,
- action_7,
- action_8,
- action_9,
- action_10,
- action_11,
- action_12,
- action_13,
- action_14,
- action_15,
- action_16,
- action_17,
- action_18,
- action_19,
- action_20,
- action_21,
- action_22,
- action_23,
- action_24,
- action_25,
- action_26,
- action_27,
- action_28,
- action_29,
- action_30,
- action_31,
- action_32,
- action_33,
- action_34,
- action_35,
- action_36,
- action_37,
- action_38,
- action_39,
- action_40,
- action_41,
- action_42,
- action_43,
- action_44,
- action_45,
- action_46,
- action_47,
- action_48,
- action_49,
- action_50,
- action_51,
- action_52,
- action_53,
- action_54,
- action_55,
- action_56,
- action_57,
- action_58,
- action_59,
- action_60,
- action_61,
- action_62,
- action_63,
- action_64,
- action_65,
- action_66,
- action_67,
- action_68,
- action_69,
- action_70,
- action_71,
- action_72,
- action_73,
- action_74,
- action_75,
- action_76,
- action_77,
- action_78,
- action_79,
- action_80,
- action_81,
- action_82,
- action_83,
- action_84,
- action_85,
- action_86,
- action_87,
- action_88,
- action_89,
- action_90,
- action_91,
- action_92,
- action_93,
- action_94,
- action_95,
- action_96,
- action_97,
- action_98,
- action_99,
- action_100,
- action_101,
- action_102,
- action_103,
- action_104,
- action_105,
- action_106,
- action_107,
- action_108,
- action_109,
- action_110,
- action_111,
- action_112,
- action_113,
- action_114,
- action_115 :: () => Prelude.Int -> ({-HappyReduction (Err) = -}
-	   Prelude.Int 
-	-> (Token)
-	-> HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> (Err) HappyAbsSyn)
-	-> [HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> (Err) HappyAbsSyn)] 
-	-> HappyStk HappyAbsSyn 
-	-> [(Token)] -> (Err) HappyAbsSyn)
-
-happyReduce_11,
- happyReduce_12,
- happyReduce_13,
- happyReduce_14,
- happyReduce_15,
- happyReduce_16,
- happyReduce_17,
- happyReduce_18,
- happyReduce_19,
- happyReduce_20,
- happyReduce_21,
- happyReduce_22,
- happyReduce_23,
- happyReduce_24,
- happyReduce_25,
- happyReduce_26,
- happyReduce_27,
- happyReduce_28,
- happyReduce_29,
- happyReduce_30,
- happyReduce_31,
- happyReduce_32,
- happyReduce_33,
- happyReduce_34,
- happyReduce_35,
- happyReduce_36,
- happyReduce_37,
- happyReduce_38,
- happyReduce_39,
- happyReduce_40,
- happyReduce_41,
- happyReduce_42,
- happyReduce_43,
- happyReduce_44,
- happyReduce_45,
- happyReduce_46,
- happyReduce_47,
- happyReduce_48,
- happyReduce_49,
- happyReduce_50,
- happyReduce_51,
- happyReduce_52,
- happyReduce_53,
- happyReduce_54,
- happyReduce_55,
- happyReduce_56,
- happyReduce_57,
- happyReduce_58,
- happyReduce_59,
- happyReduce_60,
- happyReduce_61,
- happyReduce_62,
- happyReduce_63,
- happyReduce_64,
- happyReduce_65,
- happyReduce_66,
- happyReduce_67,
- happyReduce_68,
- happyReduce_69,
- happyReduce_70 :: () => ({-HappyReduction (Err) = -}
-	   Prelude.Int 
-	-> (Token)
-	-> HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> (Err) HappyAbsSyn)
-	-> [HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> (Err) HappyAbsSyn)] 
-	-> HappyStk HappyAbsSyn 
-	-> [(Token)] -> (Err) HappyAbsSyn)
-
-happyExpList :: Happy_Data_Array.Array Prelude.Int Prelude.Int
-happyExpList = Happy_Data_Array.listArray (0,290) ([0,0,4096,0,0,0,0,0,57344,3,0,0,11304,5127,0,0,20480,32771,11,0,0,3392,11776,0,0,0,48,56,0,0,54272,57344,0,0,0,37024,0,0,0,32768,578,0,0,32768,8,0,0,0,8704,0,0,0,0,0,1024,0,0,0,0,0,0,0,2176,0,0,0,0,0,0,0,0,0,848,2944,0,0,0,12,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,54272,57344,2,0,0,0,0,0,0,544,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16384,0,0,0,0,0,0,0,0,0,16384,0,0,0,0,32768,0,0,0,0,512,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,512,0,0,0,0,424,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,45216,20508,0,0,16384,13,46,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,32,0,0,0,848,2944,0,0,0,1024,0,0,32768,30,0,0,0,0,212,736,0,0,0,0,4,0,0,3072,3584,0,0,0,8,0,0,0,10240,1836,20,0,0,0,64,0,0,0,32800,128,0,0,35328,459,5,0,0,212,736,0,0,0,0,0,0,0,0,4,0,0,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,424,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,440,0,0,0,0,4096,0,0,0,0,0,0,0,0,0,0,0,0,4096,0,0,0,0,32768,29378,320,0,0,0,0,0,0,0,16384,0,0,0,2048,0,0,0,40960,6,1,0,0,0,0,0,0,0,10240,1836,20,0,0,0,0,0,0,3744,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
-	])
-
-{-# NOINLINE happyExpListPerState #-}
-happyExpListPerState st =
-    token_strs_expected
-  where token_strs = ["error","%dummy","%start_pProgram","%start_pMetaId","%start_pObject","%start_pBinding","%start_pListBinding","%start_pAttribute","%start_pRuleAttribute","%start_pPeeledObject","%start_pObjectHead","%start_pObjectAction","%start_pListObjectAction","Double","Integer","String","Bytes","Function","LabelId","AlphaIndex","LabelMetaId","TailMetaId","BindingsMetaId","ObjectMetaId","BytesMetaId","MetaFunctionName","Program","MetaId","Object","Binding","ListBinding","Attribute","RuleAttribute","PeeledObject","ObjectHead","ObjectAction","ListObjectAction","'('","')'","'*'","','","'.'","'['","']'","'{'","'}'","'\916'","'\934'","'\955'","'\958'","'\961'","'\966'","'\8614'","'\8709'","'\8869'","'\8968'","'\8969'","'\10214'","'\10215'","'\10509'","L_doubl","L_integ","L_quoted","L_Bytes","L_Function","L_LabelId","L_AlphaIndex","L_LabelMetaId","L_TailMetaId","L_BindingsMetaId","L_ObjectMetaId","L_BytesMetaId","L_MetaFunctionName","%eof"]
-        bit_start = st Prelude.* 74
-        bit_end = (st Prelude.+ 1) Prelude.* 74
-        read_bit = readArrayBit happyExpList
-        bits = Prelude.map read_bit [bit_start..bit_end Prelude.- 1]
-        bits_indexed = Prelude.zip bits [0..73]
-        token_strs_expected = Prelude.concatMap f bits_indexed
-        f (Prelude.False, _) = []
-        f (Prelude.True, nr) = [token_strs Prelude.!! nr]
-
-action_0 (45) = happyShift action_70
-action_0 (27) = happyGoto action_69
-action_0 _ = happyFail (happyExpListPerState 0)
-
-action_1 (68) = happyShift action_36
-action_1 (69) = happyShift action_67
-action_1 (70) = happyShift action_44
-action_1 (71) = happyShift action_59
-action_1 (72) = happyShift action_68
-action_1 (21) = happyGoto action_61
-action_1 (22) = happyGoto action_62
-action_1 (23) = happyGoto action_63
-action_1 (24) = happyGoto action_64
-action_1 (25) = happyGoto action_65
-action_1 (28) = happyGoto action_66
-action_1 _ = happyFail (happyExpListPerState 1)
-
-action_2 (48) = happyShift action_52
-action_2 (50) = happyShift action_53
-action_2 (55) = happyShift action_54
-action_2 (56) = happyShift action_55
-action_2 (58) = happyShift action_56
-action_2 (61) = happyShift action_12
-action_2 (62) = happyShift action_57
-action_2 (63) = happyShift action_58
-action_2 (71) = happyShift action_59
-action_2 (73) = happyShift action_60
-action_2 (14) = happyGoto action_46
-action_2 (15) = happyGoto action_47
-action_2 (16) = happyGoto action_48
-action_2 (24) = happyGoto action_49
-action_2 (26) = happyGoto action_50
-action_2 (29) = happyGoto action_51
-action_2 _ = happyFail (happyExpListPerState 2)
-
-action_3 (47) = happyShift action_42
-action_3 (49) = happyShift action_43
-action_3 (51) = happyShift action_32
-action_3 (52) = happyShift action_33
-action_3 (66) = happyShift action_34
-action_3 (67) = happyShift action_35
-action_3 (68) = happyShift action_36
-action_3 (70) = happyShift action_44
-action_3 (19) = happyGoto action_25
-action_3 (20) = happyGoto action_26
-action_3 (21) = happyGoto action_27
-action_3 (23) = happyGoto action_38
-action_3 (30) = happyGoto action_45
-action_3 (32) = happyGoto action_41
-action_3 _ = happyFail (happyExpListPerState 3)
-
-action_4 (47) = happyShift action_42
-action_4 (49) = happyShift action_43
-action_4 (51) = happyShift action_32
-action_4 (52) = happyShift action_33
-action_4 (66) = happyShift action_34
-action_4 (67) = happyShift action_35
-action_4 (68) = happyShift action_36
-action_4 (70) = happyShift action_44
-action_4 (19) = happyGoto action_25
-action_4 (20) = happyGoto action_26
-action_4 (21) = happyGoto action_27
-action_4 (23) = happyGoto action_38
-action_4 (30) = happyGoto action_39
-action_4 (31) = happyGoto action_40
-action_4 (32) = happyGoto action_41
-action_4 _ = happyReduce_51
-
-action_5 (51) = happyShift action_32
-action_5 (52) = happyShift action_33
-action_5 (66) = happyShift action_34
-action_5 (67) = happyShift action_35
-action_5 (68) = happyShift action_36
-action_5 (19) = happyGoto action_25
-action_5 (20) = happyGoto action_26
-action_5 (21) = happyGoto action_27
-action_5 (32) = happyGoto action_37
-action_5 _ = happyFail (happyExpListPerState 5)
-
-action_6 (47) = happyShift action_30
-action_6 (49) = happyShift action_31
-action_6 (51) = happyShift action_32
-action_6 (52) = happyShift action_33
-action_6 (66) = happyShift action_34
-action_6 (67) = happyShift action_35
-action_6 (68) = happyShift action_36
-action_6 (19) = happyGoto action_25
-action_6 (20) = happyGoto action_26
-action_6 (21) = happyGoto action_27
-action_6 (32) = happyGoto action_28
-action_6 (33) = happyGoto action_29
-action_6 _ = happyFail (happyExpListPerState 6)
-
-action_7 (48) = happyShift action_19
-action_7 (50) = happyShift action_20
-action_7 (55) = happyShift action_21
-action_7 (58) = happyShift action_22
-action_7 (34) = happyGoto action_23
-action_7 (35) = happyGoto action_24
-action_7 _ = happyFail (happyExpListPerState 7)
-
-action_8 (48) = happyShift action_19
-action_8 (50) = happyShift action_20
-action_8 (55) = happyShift action_21
-action_8 (58) = happyShift action_22
-action_8 (35) = happyGoto action_18
-action_8 _ = happyFail (happyExpListPerState 8)
-
-action_9 (38) = happyShift action_15
-action_9 (42) = happyShift action_16
-action_9 (36) = happyGoto action_17
-action_9 _ = happyFail (happyExpListPerState 9)
-
-action_10 (38) = happyShift action_15
-action_10 (42) = happyShift action_16
-action_10 (36) = happyGoto action_13
-action_10 (37) = happyGoto action_14
-action_10 _ = happyReduce_69
-
-action_11 (61) = happyShift action_12
-action_11 _ = happyFail (happyExpListPerState 11)
-
-action_12 _ = happyReduce_11
-
-action_13 (38) = happyShift action_15
-action_13 (42) = happyShift action_16
-action_13 (36) = happyGoto action_13
-action_13 (37) = happyGoto action_87
-action_13 _ = happyReduce_69
-
-action_14 (74) = happyAccept
-action_14 _ = happyFail (happyExpListPerState 14)
-
-action_15 (47) = happyShift action_42
-action_15 (49) = happyShift action_43
-action_15 (51) = happyShift action_32
-action_15 (52) = happyShift action_33
-action_15 (66) = happyShift action_34
-action_15 (67) = happyShift action_35
-action_15 (68) = happyShift action_36
-action_15 (70) = happyShift action_44
-action_15 (19) = happyGoto action_25
-action_15 (20) = happyGoto action_26
-action_15 (21) = happyGoto action_27
-action_15 (23) = happyGoto action_38
-action_15 (30) = happyGoto action_39
-action_15 (31) = happyGoto action_86
-action_15 (32) = happyGoto action_41
-action_15 _ = happyReduce_51
-
-action_16 (51) = happyShift action_32
-action_16 (52) = happyShift action_33
-action_16 (66) = happyShift action_34
-action_16 (67) = happyShift action_35
-action_16 (68) = happyShift action_36
-action_16 (19) = happyGoto action_25
-action_16 (20) = happyGoto action_26
-action_16 (21) = happyGoto action_27
-action_16 (32) = happyGoto action_85
-action_16 _ = happyFail (happyExpListPerState 16)
-
-action_17 (74) = happyAccept
-action_17 _ = happyFail (happyExpListPerState 17)
-
-action_18 (74) = happyAccept
-action_18 _ = happyFail (happyExpListPerState 18)
-
-action_19 _ = happyReduce_64
-
-action_20 _ = happyReduce_65
-
-action_21 _ = happyReduce_66
-
-action_22 (47) = happyShift action_42
-action_22 (49) = happyShift action_43
-action_22 (51) = happyShift action_32
-action_22 (52) = happyShift action_33
-action_22 (66) = happyShift action_34
-action_22 (67) = happyShift action_35
-action_22 (68) = happyShift action_36
-action_22 (70) = happyShift action_44
-action_22 (19) = happyGoto action_25
-action_22 (20) = happyGoto action_26
-action_22 (21) = happyGoto action_27
-action_22 (23) = happyGoto action_38
-action_22 (30) = happyGoto action_39
-action_22 (31) = happyGoto action_84
-action_22 (32) = happyGoto action_41
-action_22 _ = happyReduce_51
-
-action_23 (74) = happyAccept
-action_23 _ = happyFail (happyExpListPerState 23)
-
-action_24 (38) = happyShift action_15
-action_24 (42) = happyShift action_16
-action_24 (36) = happyGoto action_13
-action_24 (37) = happyGoto action_83
-action_24 _ = happyReduce_69
-
-action_25 _ = happyReduce_56
-
-action_26 _ = happyReduce_57
-
-action_27 _ = happyReduce_58
-
-action_28 _ = happyReduce_59
-
-action_29 (74) = happyAccept
-action_29 _ = happyFail (happyExpListPerState 29)
-
-action_30 _ = happyReduce_60
-
-action_31 _ = happyReduce_61
-
-action_32 _ = happyReduce_55
-
-action_33 _ = happyReduce_54
-
-action_34 _ = happyReduce_16
-
-action_35 _ = happyReduce_17
-
-action_36 _ = happyReduce_18
-
-action_37 (74) = happyAccept
-action_37 _ = happyFail (happyExpListPerState 37)
-
-action_38 _ = happyReduce_49
-
-action_39 (41) = happyShift action_82
-action_39 _ = happyReduce_52
-
-action_40 (74) = happyAccept
-action_40 _ = happyFail (happyExpListPerState 40)
-
-action_41 (53) = happyShift action_81
-action_41 _ = happyFail (happyExpListPerState 41)
-
-action_42 (60) = happyShift action_80
-action_42 _ = happyFail (happyExpListPerState 42)
-
-action_43 (60) = happyShift action_79
-action_43 _ = happyFail (happyExpListPerState 43)
-
-action_44 _ = happyReduce_20
-
-action_45 (74) = happyAccept
-action_45 _ = happyFail (happyExpListPerState 45)
-
-action_46 _ = happyReduce_38
-
-action_47 _ = happyReduce_37
-
-action_48 _ = happyReduce_36
-
-action_49 _ = happyReduce_41
-
-action_50 (38) = happyShift action_78
-action_50 _ = happyFail (happyExpListPerState 50)
-
-action_51 (38) = happyShift action_74
-action_51 (40) = happyShift action_75
-action_51 (42) = happyShift action_76
-action_51 (43) = happyShift action_77
-action_51 (74) = happyAccept
-action_51 _ = happyFail (happyExpListPerState 51)
-
-action_52 _ = happyReduce_33
-
-action_53 _ = happyReduce_34
-
-action_54 _ = happyReduce_35
-
-action_55 (48) = happyShift action_52
-action_55 (50) = happyShift action_53
-action_55 (55) = happyShift action_54
-action_55 (56) = happyShift action_55
-action_55 (58) = happyShift action_56
-action_55 (61) = happyShift action_12
-action_55 (62) = happyShift action_57
-action_55 (63) = happyShift action_58
-action_55 (71) = happyShift action_59
-action_55 (73) = happyShift action_60
-action_55 (14) = happyGoto action_46
-action_55 (15) = happyGoto action_47
-action_55 (16) = happyGoto action_48
-action_55 (24) = happyGoto action_49
-action_55 (26) = happyGoto action_50
-action_55 (29) = happyGoto action_73
-action_55 _ = happyFail (happyExpListPerState 55)
-
-action_56 (47) = happyShift action_42
-action_56 (49) = happyShift action_43
-action_56 (51) = happyShift action_32
-action_56 (52) = happyShift action_33
-action_56 (66) = happyShift action_34
-action_56 (67) = happyShift action_35
-action_56 (68) = happyShift action_36
-action_56 (70) = happyShift action_44
-action_56 (19) = happyGoto action_25
-action_56 (20) = happyGoto action_26
-action_56 (21) = happyGoto action_27
-action_56 (23) = happyGoto action_38
-action_56 (30) = happyGoto action_39
-action_56 (31) = happyGoto action_72
-action_56 (32) = happyGoto action_41
-action_56 _ = happyReduce_51
-
-action_57 _ = happyReduce_12
-
-action_58 _ = happyReduce_13
-
-action_59 _ = happyReduce_21
-
-action_60 _ = happyReduce_23
-
-action_61 _ = happyReduce_25
-
-action_62 _ = happyReduce_26
-
-action_63 _ = happyReduce_27
-
-action_64 _ = happyReduce_28
-
-action_65 _ = happyReduce_29
-
-action_66 (74) = happyAccept
-action_66 _ = happyFail (happyExpListPerState 66)
-
-action_67 _ = happyReduce_19
-
-action_68 _ = happyReduce_22
-
-action_69 (74) = happyAccept
-action_69 _ = happyFail (happyExpListPerState 69)
-
-action_70 (58) = happyShift action_71
-action_70 _ = happyFail (happyExpListPerState 70)
-
-action_71 (47) = happyShift action_42
-action_71 (49) = happyShift action_43
-action_71 (51) = happyShift action_32
-action_71 (52) = happyShift action_33
-action_71 (66) = happyShift action_34
-action_71 (67) = happyShift action_35
-action_71 (68) = happyShift action_36
-action_71 (70) = happyShift action_44
-action_71 (19) = happyGoto action_25
-action_71 (20) = happyGoto action_26
-action_71 (21) = happyGoto action_27
-action_71 (23) = happyGoto action_38
-action_71 (30) = happyGoto action_39
-action_71 (31) = happyGoto action_106
-action_71 (32) = happyGoto action_41
-action_71 _ = happyReduce_51
-
-action_72 (59) = happyShift action_105
-action_72 _ = happyFail (happyExpListPerState 72)
-
-action_73 (38) = happyShift action_74
-action_73 (40) = happyShift action_75
-action_73 (41) = happyShift action_104
-action_73 (42) = happyShift action_76
-action_73 (43) = happyShift action_77
-action_73 _ = happyFail (happyExpListPerState 73)
-
-action_74 (47) = happyShift action_42
-action_74 (49) = happyShift action_43
-action_74 (51) = happyShift action_32
-action_74 (52) = happyShift action_33
-action_74 (66) = happyShift action_34
-action_74 (67) = happyShift action_35
-action_74 (68) = happyShift action_36
-action_74 (70) = happyShift action_44
-action_74 (19) = happyGoto action_25
-action_74 (20) = happyGoto action_26
-action_74 (21) = happyGoto action_27
-action_74 (23) = happyGoto action_38
-action_74 (30) = happyGoto action_39
-action_74 (31) = happyGoto action_103
-action_74 (32) = happyGoto action_41
-action_74 _ = happyReduce_51
-
-action_75 (69) = happyShift action_67
-action_75 (22) = happyGoto action_102
-action_75 _ = happyFail (happyExpListPerState 75)
-
-action_76 (51) = happyShift action_32
-action_76 (52) = happyShift action_33
-action_76 (66) = happyShift action_34
-action_76 (67) = happyShift action_35
-action_76 (68) = happyShift action_36
-action_76 (19) = happyGoto action_25
-action_76 (20) = happyGoto action_26
-action_76 (21) = happyGoto action_27
-action_76 (32) = happyGoto action_101
-action_76 _ = happyFail (happyExpListPerState 76)
-
-action_77 (50) = happyShift action_100
-action_77 _ = happyFail (happyExpListPerState 77)
-
-action_78 (48) = happyShift action_52
-action_78 (50) = happyShift action_53
-action_78 (55) = happyShift action_54
-action_78 (56) = happyShift action_55
-action_78 (58) = happyShift action_56
-action_78 (61) = happyShift action_12
-action_78 (62) = happyShift action_57
-action_78 (63) = happyShift action_58
-action_78 (71) = happyShift action_59
-action_78 (73) = happyShift action_60
-action_78 (14) = happyGoto action_46
-action_78 (15) = happyGoto action_47
-action_78 (16) = happyGoto action_48
-action_78 (24) = happyGoto action_49
-action_78 (26) = happyGoto action_50
-action_78 (29) = happyGoto action_99
-action_78 _ = happyFail (happyExpListPerState 78)
-
-action_79 (65) = happyShift action_98
-action_79 (18) = happyGoto action_97
-action_79 _ = happyFail (happyExpListPerState 79)
-
-action_80 (54) = happyShift action_95
-action_80 (64) = happyShift action_96
-action_80 (72) = happyShift action_68
-action_80 (17) = happyGoto action_93
-action_80 (25) = happyGoto action_94
-action_80 _ = happyFail (happyExpListPerState 80)
-
-action_81 (48) = happyShift action_52
-action_81 (50) = happyShift action_53
-action_81 (54) = happyShift action_92
-action_81 (55) = happyShift action_54
-action_81 (56) = happyShift action_55
-action_81 (58) = happyShift action_56
-action_81 (61) = happyShift action_12
-action_81 (62) = happyShift action_57
-action_81 (63) = happyShift action_58
-action_81 (71) = happyShift action_59
-action_81 (73) = happyShift action_60
-action_81 (14) = happyGoto action_46
-action_81 (15) = happyGoto action_47
-action_81 (16) = happyGoto action_48
-action_81 (24) = happyGoto action_49
-action_81 (26) = happyGoto action_50
-action_81 (29) = happyGoto action_91
-action_81 _ = happyFail (happyExpListPerState 81)
-
-action_82 (47) = happyShift action_42
-action_82 (49) = happyShift action_43
-action_82 (51) = happyShift action_32
-action_82 (52) = happyShift action_33
-action_82 (66) = happyShift action_34
-action_82 (67) = happyShift action_35
-action_82 (68) = happyShift action_36
-action_82 (70) = happyShift action_44
-action_82 (19) = happyGoto action_25
-action_82 (20) = happyGoto action_26
-action_82 (21) = happyGoto action_27
-action_82 (23) = happyGoto action_38
-action_82 (30) = happyGoto action_39
-action_82 (31) = happyGoto action_90
-action_82 (32) = happyGoto action_41
-action_82 _ = happyReduce_51
-
-action_83 _ = happyReduce_62
-
-action_84 (59) = happyShift action_89
-action_84 _ = happyFail (happyExpListPerState 84)
-
-action_85 _ = happyReduce_68
-
-action_86 (39) = happyShift action_88
-action_86 _ = happyFail (happyExpListPerState 86)
-
-action_87 _ = happyReduce_70
-
-action_88 _ = happyReduce_67
-
-action_89 _ = happyReduce_63
-
-action_90 _ = happyReduce_53
-
-action_91 (38) = happyShift action_74
-action_91 (40) = happyShift action_75
-action_91 (42) = happyShift action_76
-action_91 (43) = happyShift action_77
-action_91 _ = happyReduce_44
-
-action_92 _ = happyReduce_45
-
-action_93 _ = happyReduce_46
-
-action_94 _ = happyReduce_50
-
-action_95 _ = happyReduce_47
-
-action_96 _ = happyReduce_14
-
-action_97 _ = happyReduce_48
-
-action_98 _ = happyReduce_15
-
-action_99 (38) = happyShift action_74
-action_99 (39) = happyShift action_111
-action_99 (40) = happyShift action_75
-action_99 (42) = happyShift action_76
-action_99 (43) = happyShift action_77
-action_99 _ = happyFail (happyExpListPerState 99)
-
-action_100 (53) = happyShift action_110
-action_100 _ = happyFail (happyExpListPerState 100)
-
-action_101 _ = happyReduce_32
-
-action_102 _ = happyReduce_42
-
-action_103 (39) = happyShift action_109
-action_103 _ = happyFail (happyExpListPerState 103)
-
-action_104 (48) = happyShift action_52
-action_104 (50) = happyShift action_53
-action_104 (55) = happyShift action_54
-action_104 (56) = happyShift action_55
-action_104 (58) = happyShift action_56
-action_104 (61) = happyShift action_12
-action_104 (62) = happyShift action_57
-action_104 (63) = happyShift action_58
-action_104 (71) = happyShift action_59
-action_104 (73) = happyShift action_60
-action_104 (14) = happyGoto action_46
-action_104 (15) = happyGoto action_47
-action_104 (16) = happyGoto action_48
-action_104 (24) = happyGoto action_49
-action_104 (26) = happyGoto action_50
-action_104 (29) = happyGoto action_108
-action_104 _ = happyFail (happyExpListPerState 104)
-
-action_105 _ = happyReduce_30
-
-action_106 (59) = happyShift action_107
-action_106 _ = happyFail (happyExpListPerState 106)
-
-action_107 (46) = happyShift action_114
-action_107 _ = happyFail (happyExpListPerState 107)
-
-action_108 (38) = happyShift action_74
-action_108 (40) = happyShift action_75
-action_108 (42) = happyShift action_76
-action_108 (43) = happyShift action_77
-action_108 (57) = happyShift action_113
-action_108 _ = happyFail (happyExpListPerState 108)
-
-action_109 _ = happyReduce_31
-
-action_110 (48) = happyShift action_52
-action_110 (50) = happyShift action_53
-action_110 (55) = happyShift action_54
-action_110 (56) = happyShift action_55
-action_110 (58) = happyShift action_56
-action_110 (61) = happyShift action_12
-action_110 (62) = happyShift action_57
-action_110 (63) = happyShift action_58
-action_110 (71) = happyShift action_59
-action_110 (73) = happyShift action_60
-action_110 (14) = happyGoto action_46
-action_110 (15) = happyGoto action_47
-action_110 (16) = happyGoto action_48
-action_110 (24) = happyGoto action_49
-action_110 (26) = happyGoto action_50
-action_110 (29) = happyGoto action_112
-action_110 _ = happyFail (happyExpListPerState 110)
-
-action_111 _ = happyReduce_43
-
-action_112 (38) = happyShift action_74
-action_112 (40) = happyShift action_75
-action_112 (42) = happyShift action_76
-action_112 (43) = happyShift action_77
-action_112 (44) = happyShift action_115
-action_112 _ = happyFail (happyExpListPerState 112)
-
-action_113 _ = happyReduce_40
-
-action_114 _ = happyReduce_24
-
-action_115 _ = happyReduce_39
-
-happyReduce_11 = happySpecReduce_1  14 happyReduction_11
-happyReduction_11 (HappyTerminal (PT _ (TD happy_var_1)))
-	 =  HappyAbsSyn14
-		 ((read happy_var_1) :: Double
-	)
-happyReduction_11 _  = notHappyAtAll 
-
-happyReduce_12 = happySpecReduce_1  15 happyReduction_12
-happyReduction_12 (HappyTerminal (PT _ (TI happy_var_1)))
-	 =  HappyAbsSyn15
-		 ((read happy_var_1) :: Integer
-	)
-happyReduction_12 _  = notHappyAtAll 
-
-happyReduce_13 = happySpecReduce_1  16 happyReduction_13
-happyReduction_13 (HappyTerminal (PT _ (TL happy_var_1)))
-	 =  HappyAbsSyn16
-		 (happy_var_1
-	)
-happyReduction_13 _  = notHappyAtAll 
-
-happyReduce_14 = happySpecReduce_1  17 happyReduction_14
-happyReduction_14 (HappyTerminal (PT _ (T_Bytes happy_var_1)))
-	 =  HappyAbsSyn17
-		 (Language.EO.Phi.Syntax.Abs.Bytes happy_var_1
-	)
-happyReduction_14 _  = notHappyAtAll 
-
-happyReduce_15 = happySpecReduce_1  18 happyReduction_15
-happyReduction_15 (HappyTerminal (PT _ (T_Function happy_var_1)))
-	 =  HappyAbsSyn18
-		 (Language.EO.Phi.Syntax.Abs.Function happy_var_1
-	)
-happyReduction_15 _  = notHappyAtAll 
-
-happyReduce_16 = happySpecReduce_1  19 happyReduction_16
-happyReduction_16 (HappyTerminal (PT _ (T_LabelId happy_var_1)))
-	 =  HappyAbsSyn19
-		 (Language.EO.Phi.Syntax.Abs.LabelId happy_var_1
-	)
-happyReduction_16 _  = notHappyAtAll 
-
-happyReduce_17 = happySpecReduce_1  20 happyReduction_17
-happyReduction_17 (HappyTerminal (PT _ (T_AlphaIndex happy_var_1)))
-	 =  HappyAbsSyn20
-		 (Language.EO.Phi.Syntax.Abs.AlphaIndex happy_var_1
-	)
-happyReduction_17 _  = notHappyAtAll 
-
-happyReduce_18 = happySpecReduce_1  21 happyReduction_18
-happyReduction_18 (HappyTerminal (PT _ (T_LabelMetaId happy_var_1)))
-	 =  HappyAbsSyn21
-		 (Language.EO.Phi.Syntax.Abs.LabelMetaId happy_var_1
-	)
-happyReduction_18 _  = notHappyAtAll 
-
-happyReduce_19 = happySpecReduce_1  22 happyReduction_19
-happyReduction_19 (HappyTerminal (PT _ (T_TailMetaId happy_var_1)))
-	 =  HappyAbsSyn22
-		 (Language.EO.Phi.Syntax.Abs.TailMetaId happy_var_1
-	)
-happyReduction_19 _  = notHappyAtAll 
-
-happyReduce_20 = happySpecReduce_1  23 happyReduction_20
-happyReduction_20 (HappyTerminal (PT _ (T_BindingsMetaId happy_var_1)))
-	 =  HappyAbsSyn23
-		 (Language.EO.Phi.Syntax.Abs.BindingsMetaId happy_var_1
-	)
-happyReduction_20 _  = notHappyAtAll 
-
-happyReduce_21 = happySpecReduce_1  24 happyReduction_21
-happyReduction_21 (HappyTerminal (PT _ (T_ObjectMetaId happy_var_1)))
-	 =  HappyAbsSyn24
-		 (Language.EO.Phi.Syntax.Abs.ObjectMetaId happy_var_1
-	)
-happyReduction_21 _  = notHappyAtAll 
-
-happyReduce_22 = happySpecReduce_1  25 happyReduction_22
-happyReduction_22 (HappyTerminal (PT _ (T_BytesMetaId happy_var_1)))
-	 =  HappyAbsSyn25
-		 (Language.EO.Phi.Syntax.Abs.BytesMetaId happy_var_1
-	)
-happyReduction_22 _  = notHappyAtAll 
-
-happyReduce_23 = happySpecReduce_1  26 happyReduction_23
-happyReduction_23 (HappyTerminal (PT _ (T_MetaFunctionName happy_var_1)))
-	 =  HappyAbsSyn26
-		 (Language.EO.Phi.Syntax.Abs.MetaFunctionName happy_var_1
-	)
-happyReduction_23 _  = notHappyAtAll 
-
-happyReduce_24 = happyReduce 5 27 happyReduction_24
-happyReduction_24 (_ `HappyStk`
-	_ `HappyStk`
-	(HappyAbsSyn31  happy_var_3) `HappyStk`
-	_ `HappyStk`
-	_ `HappyStk`
-	happyRest)
-	 = HappyAbsSyn27
-		 (Language.EO.Phi.Syntax.Abs.Program happy_var_3
-	) `HappyStk` happyRest
-
-happyReduce_25 = happySpecReduce_1  28 happyReduction_25
-happyReduction_25 (HappyAbsSyn21  happy_var_1)
-	 =  HappyAbsSyn28
-		 (Language.EO.Phi.Syntax.Abs.MetaIdLabel happy_var_1
-	)
-happyReduction_25 _  = notHappyAtAll 
-
-happyReduce_26 = happySpecReduce_1  28 happyReduction_26
-happyReduction_26 (HappyAbsSyn22  happy_var_1)
-	 =  HappyAbsSyn28
-		 (Language.EO.Phi.Syntax.Abs.MetaIdTail happy_var_1
-	)
-happyReduction_26 _  = notHappyAtAll 
-
-happyReduce_27 = happySpecReduce_1  28 happyReduction_27
-happyReduction_27 (HappyAbsSyn23  happy_var_1)
-	 =  HappyAbsSyn28
-		 (Language.EO.Phi.Syntax.Abs.MetaIdBindings happy_var_1
-	)
-happyReduction_27 _  = notHappyAtAll 
-
-happyReduce_28 = happySpecReduce_1  28 happyReduction_28
-happyReduction_28 (HappyAbsSyn24  happy_var_1)
-	 =  HappyAbsSyn28
-		 (Language.EO.Phi.Syntax.Abs.MetaIdObject happy_var_1
-	)
-happyReduction_28 _  = notHappyAtAll 
-
-happyReduce_29 = happySpecReduce_1  28 happyReduction_29
-happyReduction_29 (HappyAbsSyn25  happy_var_1)
-	 =  HappyAbsSyn28
-		 (Language.EO.Phi.Syntax.Abs.MetaIdBytes happy_var_1
-	)
-happyReduction_29 _  = notHappyAtAll 
-
-happyReduce_30 = happySpecReduce_3  29 happyReduction_30
-happyReduction_30 _
-	(HappyAbsSyn31  happy_var_2)
-	_
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.Formation happy_var_2
-	)
-happyReduction_30 _ _ _  = notHappyAtAll 
-
-happyReduce_31 = happyReduce 4 29 happyReduction_31
-happyReduction_31 (_ `HappyStk`
-	(HappyAbsSyn31  happy_var_3) `HappyStk`
-	_ `HappyStk`
-	(HappyAbsSyn29  happy_var_1) `HappyStk`
-	happyRest)
-	 = HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.Application happy_var_1 happy_var_3
-	) `HappyStk` happyRest
-
-happyReduce_32 = happySpecReduce_3  29 happyReduction_32
-happyReduction_32 (HappyAbsSyn32  happy_var_3)
-	_
-	(HappyAbsSyn29  happy_var_1)
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.ObjectDispatch happy_var_1 happy_var_3
-	)
-happyReduction_32 _ _ _  = notHappyAtAll 
-
-happyReduce_33 = happySpecReduce_1  29 happyReduction_33
-happyReduction_33 _
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.GlobalObject
-	)
-
-happyReduce_34 = happySpecReduce_1  29 happyReduction_34
-happyReduction_34 _
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.ThisObject
-	)
-
-happyReduce_35 = happySpecReduce_1  29 happyReduction_35
-happyReduction_35 _
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.Termination
-	)
-
-happyReduce_36 = happySpecReduce_1  29 happyReduction_36
-happyReduction_36 (HappyAbsSyn16  happy_var_1)
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.ConstString happy_var_1
-	)
-happyReduction_36 _  = notHappyAtAll 
-
-happyReduce_37 = happySpecReduce_1  29 happyReduction_37
-happyReduction_37 (HappyAbsSyn15  happy_var_1)
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.ConstInt happy_var_1
-	)
-happyReduction_37 _  = notHappyAtAll 
-
-happyReduce_38 = happySpecReduce_1  29 happyReduction_38
-happyReduction_38 (HappyAbsSyn14  happy_var_1)
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.ConstFloat happy_var_1
-	)
-happyReduction_38 _  = notHappyAtAll 
-
-happyReduce_39 = happyReduce 6 29 happyReduction_39
-happyReduction_39 (_ `HappyStk`
-	(HappyAbsSyn29  happy_var_5) `HappyStk`
-	_ `HappyStk`
-	_ `HappyStk`
-	_ `HappyStk`
-	(HappyAbsSyn29  happy_var_1) `HappyStk`
-	happyRest)
-	 = HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.MetaSubstThis happy_var_1 happy_var_5
-	) `HappyStk` happyRest
-
-happyReduce_40 = happyReduce 5 29 happyReduction_40
-happyReduction_40 (_ `HappyStk`
-	(HappyAbsSyn29  happy_var_4) `HappyStk`
-	_ `HappyStk`
-	(HappyAbsSyn29  happy_var_2) `HappyStk`
-	_ `HappyStk`
-	happyRest)
-	 = HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.MetaContextualize happy_var_2 happy_var_4
-	) `HappyStk` happyRest
-
-happyReduce_41 = happySpecReduce_1  29 happyReduction_41
-happyReduction_41 (HappyAbsSyn24  happy_var_1)
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.MetaObject happy_var_1
-	)
-happyReduction_41 _  = notHappyAtAll 
-
-happyReduce_42 = happySpecReduce_3  29 happyReduction_42
-happyReduction_42 (HappyAbsSyn22  happy_var_3)
-	_
-	(HappyAbsSyn29  happy_var_1)
-	 =  HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.MetaTailContext happy_var_1 happy_var_3
-	)
-happyReduction_42 _ _ _  = notHappyAtAll 
-
-happyReduce_43 = happyReduce 4 29 happyReduction_43
-happyReduction_43 (_ `HappyStk`
-	(HappyAbsSyn29  happy_var_3) `HappyStk`
-	_ `HappyStk`
-	(HappyAbsSyn26  happy_var_1) `HappyStk`
-	happyRest)
-	 = HappyAbsSyn29
-		 (Language.EO.Phi.Syntax.Abs.MetaFunction happy_var_1 happy_var_3
-	) `HappyStk` happyRest
-
-happyReduce_44 = happySpecReduce_3  30 happyReduction_44
-happyReduction_44 (HappyAbsSyn29  happy_var_3)
-	_
-	(HappyAbsSyn32  happy_var_1)
-	 =  HappyAbsSyn30
-		 (Language.EO.Phi.Syntax.Abs.AlphaBinding happy_var_1 happy_var_3
-	)
-happyReduction_44 _ _ _  = notHappyAtAll 
-
-happyReduce_45 = happySpecReduce_3  30 happyReduction_45
-happyReduction_45 _
-	_
-	(HappyAbsSyn32  happy_var_1)
-	 =  HappyAbsSyn30
-		 (Language.EO.Phi.Syntax.Abs.EmptyBinding happy_var_1
-	)
-happyReduction_45 _ _ _  = notHappyAtAll 
-
-happyReduce_46 = happySpecReduce_3  30 happyReduction_46
-happyReduction_46 (HappyAbsSyn17  happy_var_3)
-	_
-	_
-	 =  HappyAbsSyn30
-		 (Language.EO.Phi.Syntax.Abs.DeltaBinding happy_var_3
-	)
-happyReduction_46 _ _ _  = notHappyAtAll 
-
-happyReduce_47 = happySpecReduce_3  30 happyReduction_47
-happyReduction_47 _
-	_
-	_
-	 =  HappyAbsSyn30
-		 (Language.EO.Phi.Syntax.Abs.DeltaEmptyBinding
-	)
-
-happyReduce_48 = happySpecReduce_3  30 happyReduction_48
-happyReduction_48 (HappyAbsSyn18  happy_var_3)
-	_
-	_
-	 =  HappyAbsSyn30
-		 (Language.EO.Phi.Syntax.Abs.LambdaBinding happy_var_3
-	)
-happyReduction_48 _ _ _  = notHappyAtAll 
-
-happyReduce_49 = happySpecReduce_1  30 happyReduction_49
-happyReduction_49 (HappyAbsSyn23  happy_var_1)
-	 =  HappyAbsSyn30
-		 (Language.EO.Phi.Syntax.Abs.MetaBindings happy_var_1
-	)
-happyReduction_49 _  = notHappyAtAll 
-
-happyReduce_50 = happySpecReduce_3  30 happyReduction_50
-happyReduction_50 (HappyAbsSyn25  happy_var_3)
-	_
-	_
-	 =  HappyAbsSyn30
-		 (Language.EO.Phi.Syntax.Abs.MetaDeltaBinding happy_var_3
-	)
-happyReduction_50 _ _ _  = notHappyAtAll 
-
-happyReduce_51 = happySpecReduce_0  31 happyReduction_51
-happyReduction_51  =  HappyAbsSyn31
-		 ([]
-	)
-
-happyReduce_52 = happySpecReduce_1  31 happyReduction_52
-happyReduction_52 (HappyAbsSyn30  happy_var_1)
-	 =  HappyAbsSyn31
-		 ((:[]) happy_var_1
-	)
-happyReduction_52 _  = notHappyAtAll 
-
-happyReduce_53 = happySpecReduce_3  31 happyReduction_53
-happyReduction_53 (HappyAbsSyn31  happy_var_3)
-	_
-	(HappyAbsSyn30  happy_var_1)
-	 =  HappyAbsSyn31
-		 ((:) happy_var_1 happy_var_3
-	)
-happyReduction_53 _ _ _  = notHappyAtAll 
-
-happyReduce_54 = happySpecReduce_1  32 happyReduction_54
-happyReduction_54 _
-	 =  HappyAbsSyn32
-		 (Language.EO.Phi.Syntax.Abs.Phi
-	)
-
-happyReduce_55 = happySpecReduce_1  32 happyReduction_55
-happyReduction_55 _
-	 =  HappyAbsSyn32
-		 (Language.EO.Phi.Syntax.Abs.Rho
-	)
-
-happyReduce_56 = happySpecReduce_1  32 happyReduction_56
-happyReduction_56 (HappyAbsSyn19  happy_var_1)
-	 =  HappyAbsSyn32
-		 (Language.EO.Phi.Syntax.Abs.Label happy_var_1
-	)
-happyReduction_56 _  = notHappyAtAll 
-
-happyReduce_57 = happySpecReduce_1  32 happyReduction_57
-happyReduction_57 (HappyAbsSyn20  happy_var_1)
-	 =  HappyAbsSyn32
-		 (Language.EO.Phi.Syntax.Abs.Alpha happy_var_1
-	)
-happyReduction_57 _  = notHappyAtAll 
-
-happyReduce_58 = happySpecReduce_1  32 happyReduction_58
-happyReduction_58 (HappyAbsSyn21  happy_var_1)
-	 =  HappyAbsSyn32
-		 (Language.EO.Phi.Syntax.Abs.MetaAttr happy_var_1
-	)
-happyReduction_58 _  = notHappyAtAll 
-
-happyReduce_59 = happySpecReduce_1  33 happyReduction_59
-happyReduction_59 (HappyAbsSyn32  happy_var_1)
-	 =  HappyAbsSyn33
-		 (Language.EO.Phi.Syntax.Abs.ObjectAttr happy_var_1
-	)
-happyReduction_59 _  = notHappyAtAll 
-
-happyReduce_60 = happySpecReduce_1  33 happyReduction_60
-happyReduction_60 _
-	 =  HappyAbsSyn33
-		 (Language.EO.Phi.Syntax.Abs.DeltaAttr
-	)
-
-happyReduce_61 = happySpecReduce_1  33 happyReduction_61
-happyReduction_61 _
-	 =  HappyAbsSyn33
-		 (Language.EO.Phi.Syntax.Abs.LambdaAttr
-	)
-
-happyReduce_62 = happySpecReduce_2  34 happyReduction_62
-happyReduction_62 (HappyAbsSyn37  happy_var_2)
-	(HappyAbsSyn35  happy_var_1)
-	 =  HappyAbsSyn34
-		 (Language.EO.Phi.Syntax.Abs.PeeledObject happy_var_1 happy_var_2
-	)
-happyReduction_62 _ _  = notHappyAtAll 
-
-happyReduce_63 = happySpecReduce_3  35 happyReduction_63
-happyReduction_63 _
-	(HappyAbsSyn31  happy_var_2)
-	_
-	 =  HappyAbsSyn35
-		 (Language.EO.Phi.Syntax.Abs.HeadFormation happy_var_2
-	)
-happyReduction_63 _ _ _  = notHappyAtAll 
-
-happyReduce_64 = happySpecReduce_1  35 happyReduction_64
-happyReduction_64 _
-	 =  HappyAbsSyn35
-		 (Language.EO.Phi.Syntax.Abs.HeadGlobal
-	)
-
-happyReduce_65 = happySpecReduce_1  35 happyReduction_65
-happyReduction_65 _
-	 =  HappyAbsSyn35
-		 (Language.EO.Phi.Syntax.Abs.HeadThis
-	)
-
-happyReduce_66 = happySpecReduce_1  35 happyReduction_66
-happyReduction_66 _
-	 =  HappyAbsSyn35
-		 (Language.EO.Phi.Syntax.Abs.HeadTermination
-	)
-
-happyReduce_67 = happySpecReduce_3  36 happyReduction_67
-happyReduction_67 _
-	(HappyAbsSyn31  happy_var_2)
-	_
-	 =  HappyAbsSyn36
-		 (Language.EO.Phi.Syntax.Abs.ActionApplication happy_var_2
-	)
-happyReduction_67 _ _ _  = notHappyAtAll 
-
-happyReduce_68 = happySpecReduce_2  36 happyReduction_68
-happyReduction_68 (HappyAbsSyn32  happy_var_2)
-	_
-	 =  HappyAbsSyn36
-		 (Language.EO.Phi.Syntax.Abs.ActionDispatch happy_var_2
-	)
-happyReduction_68 _ _  = notHappyAtAll 
-
-happyReduce_69 = happySpecReduce_0  37 happyReduction_69
-happyReduction_69  =  HappyAbsSyn37
-		 ([]
-	)
-
-happyReduce_70 = happySpecReduce_2  37 happyReduction_70
-happyReduction_70 (HappyAbsSyn37  happy_var_2)
-	(HappyAbsSyn36  happy_var_1)
-	 =  HappyAbsSyn37
-		 ((:) happy_var_1 happy_var_2
-	)
-happyReduction_70 _ _  = notHappyAtAll 
-
-happyNewToken action sts stk [] =
-	action 74 74 notHappyAtAll (HappyState action) sts stk []
-
-happyNewToken action sts stk (tk:tks) =
-	let cont i = action i i tk (HappyState action) sts stk tks in
-	case tk of {
-	PT _ (TS _ 1) -> cont 38;
-	PT _ (TS _ 2) -> cont 39;
-	PT _ (TS _ 3) -> cont 40;
-	PT _ (TS _ 4) -> cont 41;
-	PT _ (TS _ 5) -> cont 42;
-	PT _ (TS _ 6) -> cont 43;
-	PT _ (TS _ 7) -> cont 44;
-	PT _ (TS _ 8) -> cont 45;
-	PT _ (TS _ 9) -> cont 46;
-	PT _ (TS _ 10) -> cont 47;
-	PT _ (TS _ 11) -> cont 48;
-	PT _ (TS _ 12) -> cont 49;
-	PT _ (TS _ 13) -> cont 50;
-	PT _ (TS _ 14) -> cont 51;
-	PT _ (TS _ 15) -> cont 52;
-	PT _ (TS _ 16) -> cont 53;
-	PT _ (TS _ 17) -> cont 54;
-	PT _ (TS _ 18) -> cont 55;
-	PT _ (TS _ 19) -> cont 56;
-	PT _ (TS _ 20) -> cont 57;
-	PT _ (TS _ 21) -> cont 58;
-	PT _ (TS _ 22) -> cont 59;
-	PT _ (TS _ 23) -> cont 60;
-	PT _ (TD happy_dollar_dollar) -> cont 61;
-	PT _ (TI happy_dollar_dollar) -> cont 62;
-	PT _ (TL happy_dollar_dollar) -> cont 63;
-	PT _ (T_Bytes happy_dollar_dollar) -> cont 64;
-	PT _ (T_Function happy_dollar_dollar) -> cont 65;
-	PT _ (T_LabelId happy_dollar_dollar) -> cont 66;
-	PT _ (T_AlphaIndex happy_dollar_dollar) -> cont 67;
-	PT _ (T_LabelMetaId happy_dollar_dollar) -> cont 68;
-	PT _ (T_TailMetaId happy_dollar_dollar) -> cont 69;
-	PT _ (T_BindingsMetaId happy_dollar_dollar) -> cont 70;
-	PT _ (T_ObjectMetaId happy_dollar_dollar) -> cont 71;
-	PT _ (T_BytesMetaId happy_dollar_dollar) -> cont 72;
-	PT _ (T_MetaFunctionName happy_dollar_dollar) -> cont 73;
-	_ -> happyError' ((tk:tks), [])
-	}
-
-happyError_ explist 74 tk tks = happyError' (tks, explist)
-happyError_ explist _ tk tks = happyError' ((tk:tks), explist)
-
-happyThen :: () => Err a -> (a -> Err b) -> Err b
-happyThen = ((>>=))
-happyReturn :: () => a -> Err a
-happyReturn = (return)
-happyThen1 m k tks = ((>>=)) m (\a -> k a tks)
-happyReturn1 :: () => a -> b -> Err a
-happyReturn1 = \a tks -> (return) a
-happyError' :: () => ([(Token)], [Prelude.String]) -> Err a
-happyError' = (\(tokens, _) -> happyError tokens)
-pProgram tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_0 tks) (\x -> case x of {HappyAbsSyn27 z -> happyReturn z; _other -> notHappyAtAll })
-
-pMetaId tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_1 tks) (\x -> case x of {HappyAbsSyn28 z -> happyReturn z; _other -> notHappyAtAll })
-
-pObject tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_2 tks) (\x -> case x of {HappyAbsSyn29 z -> happyReturn z; _other -> notHappyAtAll })
-
-pBinding tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_3 tks) (\x -> case x of {HappyAbsSyn30 z -> happyReturn z; _other -> notHappyAtAll })
-
-pListBinding tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_4 tks) (\x -> case x of {HappyAbsSyn31 z -> happyReturn z; _other -> notHappyAtAll })
-
-pAttribute tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_5 tks) (\x -> case x of {HappyAbsSyn32 z -> happyReturn z; _other -> notHappyAtAll })
-
-pRuleAttribute tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_6 tks) (\x -> case x of {HappyAbsSyn33 z -> happyReturn z; _other -> notHappyAtAll })
-
-pPeeledObject tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_7 tks) (\x -> case x of {HappyAbsSyn34 z -> happyReturn z; _other -> notHappyAtAll })
-
-pObjectHead tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_8 tks) (\x -> case x of {HappyAbsSyn35 z -> happyReturn z; _other -> notHappyAtAll })
-
-pObjectAction tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_9 tks) (\x -> case x of {HappyAbsSyn36 z -> happyReturn z; _other -> notHappyAtAll })
-
-pListObjectAction tks = happySomeParser where
- happySomeParser = happyThen (happyParse action_10 tks) (\x -> case x of {HappyAbsSyn37 z -> happyReturn z; _other -> notHappyAtAll })
+  , pListLabelId
+  , pRuleAttribute
+  , pPeeledObject
+  , pObjectHead
+  , pObjectAction
+  , pListObjectAction
+  ) where
+
+import Prelude
+
+import qualified Language.EO.Phi.Syntax.Abs
+import Language.EO.Phi.Syntax.Lex
+import qualified Data.Array as Happy_Data_Array
+import qualified Data.Bits as Bits
+import Control.Applicative(Applicative(..))
+import Control.Monad (ap)
+
+-- parser produced by Happy Version 1.20.1.1
+
+data HappyAbsSyn 
+	= HappyTerminal (Token)
+	| HappyErrorToken Prelude.Int
+	| HappyAbsSyn15 (Double)
+	| HappyAbsSyn16 (Integer)
+	| HappyAbsSyn17 (String)
+	| HappyAbsSyn18 (Language.EO.Phi.Syntax.Abs.Bytes)
+	| HappyAbsSyn19 (Language.EO.Phi.Syntax.Abs.Function)
+	| HappyAbsSyn20 (Language.EO.Phi.Syntax.Abs.LabelId)
+	| HappyAbsSyn21 (Language.EO.Phi.Syntax.Abs.AlphaIndex)
+	| HappyAbsSyn22 (Language.EO.Phi.Syntax.Abs.LabelMetaId)
+	| HappyAbsSyn23 (Language.EO.Phi.Syntax.Abs.TailMetaId)
+	| HappyAbsSyn24 (Language.EO.Phi.Syntax.Abs.BindingsMetaId)
+	| HappyAbsSyn25 (Language.EO.Phi.Syntax.Abs.ObjectMetaId)
+	| HappyAbsSyn26 (Language.EO.Phi.Syntax.Abs.BytesMetaId)
+	| HappyAbsSyn27 (Language.EO.Phi.Syntax.Abs.MetaFunctionName)
+	| HappyAbsSyn28 (Language.EO.Phi.Syntax.Abs.IntegerSigned)
+	| HappyAbsSyn29 (Language.EO.Phi.Syntax.Abs.DoubleSigned)
+	| HappyAbsSyn30 (Language.EO.Phi.Syntax.Abs.StringRaw)
+	| HappyAbsSyn31 (Language.EO.Phi.Syntax.Abs.Program)
+	| HappyAbsSyn32 (Language.EO.Phi.Syntax.Abs.MetaId)
+	| HappyAbsSyn33 (Language.EO.Phi.Syntax.Abs.Object)
+	| HappyAbsSyn34 (Language.EO.Phi.Syntax.Abs.Binding)
+	| HappyAbsSyn35 ([Language.EO.Phi.Syntax.Abs.Binding])
+	| HappyAbsSyn36 (Language.EO.Phi.Syntax.Abs.Attribute)
+	| HappyAbsSyn37 ([Language.EO.Phi.Syntax.Abs.LabelId])
+	| HappyAbsSyn38 (Language.EO.Phi.Syntax.Abs.RuleAttribute)
+	| HappyAbsSyn39 (Language.EO.Phi.Syntax.Abs.PeeledObject)
+	| HappyAbsSyn40 (Language.EO.Phi.Syntax.Abs.ObjectHead)
+	| HappyAbsSyn41 (Language.EO.Phi.Syntax.Abs.ObjectAction)
+	| HappyAbsSyn42 ([Language.EO.Phi.Syntax.Abs.ObjectAction])
+
+{- to allow type-synonyms as our monads (likely
+ - with explicitly-specified bind and return)
+ - in Haskell98, it seems that with
+ - /type M a = .../, then /(HappyReduction M)/
+ - is not allowed.  But Happy is a
+ - code-generator that can just substitute it.
+type HappyReduction m = 
+	   Prelude.Int 
+	-> (Token)
+	-> HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> m HappyAbsSyn)
+	-> [HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> m HappyAbsSyn)] 
+	-> HappyStk HappyAbsSyn 
+	-> [(Token)] -> m HappyAbsSyn
+-}
+
+action_0,
+ action_1,
+ action_2,
+ action_3,
+ action_4,
+ action_5,
+ action_6,
+ action_7,
+ action_8,
+ action_9,
+ action_10,
+ action_11,
+ action_12,
+ action_13,
+ action_14,
+ action_15,
+ action_16,
+ action_17,
+ action_18,
+ action_19,
+ action_20,
+ action_21,
+ action_22,
+ action_23,
+ action_24,
+ action_25,
+ action_26,
+ action_27,
+ action_28,
+ action_29,
+ action_30,
+ action_31,
+ action_32,
+ action_33,
+ action_34,
+ action_35,
+ action_36,
+ action_37,
+ action_38,
+ action_39,
+ action_40,
+ action_41,
+ action_42,
+ action_43,
+ action_44,
+ action_45,
+ action_46,
+ action_47,
+ action_48,
+ action_49,
+ action_50,
+ action_51,
+ action_52,
+ action_53,
+ action_54,
+ action_55,
+ action_56,
+ action_57,
+ action_58,
+ action_59,
+ action_60,
+ action_61,
+ action_62,
+ action_63,
+ action_64,
+ action_65,
+ action_66,
+ action_67,
+ action_68,
+ action_69,
+ action_70,
+ action_71,
+ action_72,
+ action_73,
+ action_74,
+ action_75,
+ action_76,
+ action_77,
+ action_78,
+ action_79,
+ action_80,
+ action_81,
+ action_82,
+ action_83,
+ action_84,
+ action_85,
+ action_86,
+ action_87,
+ action_88,
+ action_89,
+ action_90,
+ action_91,
+ action_92,
+ action_93,
+ action_94,
+ action_95,
+ action_96,
+ action_97,
+ action_98,
+ action_99,
+ action_100,
+ action_101,
+ action_102,
+ action_103,
+ action_104,
+ action_105,
+ action_106,
+ action_107,
+ action_108,
+ action_109,
+ action_110,
+ action_111,
+ action_112,
+ action_113,
+ action_114,
+ action_115,
+ action_116,
+ action_117,
+ action_118,
+ action_119,
+ action_120,
+ action_121,
+ action_122,
+ action_123,
+ action_124,
+ action_125,
+ action_126,
+ action_127,
+ action_128,
+ action_129,
+ action_130,
+ action_131,
+ action_132 :: () => Prelude.Int -> ({-HappyReduction (Err) = -}
+	   Prelude.Int 
+	-> (Token)
+	-> HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> (Err) HappyAbsSyn)
+	-> [HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> (Err) HappyAbsSyn)] 
+	-> HappyStk HappyAbsSyn 
+	-> [(Token)] -> (Err) HappyAbsSyn)
+
+happyReduce_12,
+ happyReduce_13,
+ happyReduce_14,
+ happyReduce_15,
+ happyReduce_16,
+ happyReduce_17,
+ happyReduce_18,
+ happyReduce_19,
+ happyReduce_20,
+ happyReduce_21,
+ happyReduce_22,
+ happyReduce_23,
+ happyReduce_24,
+ happyReduce_25,
+ happyReduce_26,
+ happyReduce_27,
+ happyReduce_28,
+ happyReduce_29,
+ happyReduce_30,
+ happyReduce_31,
+ happyReduce_32,
+ happyReduce_33,
+ happyReduce_34,
+ happyReduce_35,
+ happyReduce_36,
+ happyReduce_37,
+ happyReduce_38,
+ happyReduce_39,
+ happyReduce_40,
+ happyReduce_41,
+ happyReduce_42,
+ happyReduce_43,
+ happyReduce_44,
+ happyReduce_45,
+ happyReduce_46,
+ happyReduce_47,
+ happyReduce_48,
+ happyReduce_49,
+ happyReduce_50,
+ happyReduce_51,
+ happyReduce_52,
+ happyReduce_53,
+ happyReduce_54,
+ happyReduce_55,
+ happyReduce_56,
+ happyReduce_57,
+ happyReduce_58,
+ happyReduce_59,
+ happyReduce_60,
+ happyReduce_61,
+ happyReduce_62,
+ happyReduce_63,
+ happyReduce_64,
+ happyReduce_65,
+ happyReduce_66,
+ happyReduce_67,
+ happyReduce_68,
+ happyReduce_69,
+ happyReduce_70,
+ happyReduce_71,
+ happyReduce_72,
+ happyReduce_73,
+ happyReduce_74,
+ happyReduce_75,
+ happyReduce_76,
+ happyReduce_77,
+ happyReduce_78,
+ happyReduce_79,
+ happyReduce_80,
+ happyReduce_81 :: () => ({-HappyReduction (Err) = -}
+	   Prelude.Int 
+	-> (Token)
+	-> HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> (Err) HappyAbsSyn)
+	-> [HappyState (Token) (HappyStk HappyAbsSyn -> [(Token)] -> (Err) HappyAbsSyn)] 
+	-> HappyStk HappyAbsSyn 
+	-> [(Token)] -> (Err) HappyAbsSyn)
+
+happyExpList :: Happy_Data_Array.Array Prelude.Int Prelude.Int
+happyExpList = Happy_Data_Array.listArray (0,374) ([0,0,0,2,0,0,0,0,0,49152,7,0,0,24576,353,1952,0,0,32768,5759,31600,0,0,0,26616,46849,7,0,0,24704,28672,0,0,0,0,0,1,0,0,32768,105,112,0,0,0,8480,1,0,0,0,4608,18,0,0,0,68,0,0,0,0,1088,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,68,0,0,0,0,0,0,0,0,0,0,26616,46849,7,0,0,24704,28672,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,32768,5759,31600,0,0,0,0,0,0,0,16384,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,64,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,512,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1024,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,54272,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,128,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16384,0,0,0,0,0,0,0,0,0,0,0,0,0,0,24576,353,1952,0,0,32768,5759,31600,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3392,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16,0,0,0,63488,359,1975,0,0,32768,5759,31600,0,0,0,0,2048,0,0,0,24704,28672,0,0,0,0,1,0,0,0,0,8192,0,0,0,62464,0,0,0,0,0,0,2048,0,0,0,0,16400,64,0,0,0,5910,31232,0,0,0,26616,46849,7,0,0,5632,22,122,0,0,0,0,1,0,0,64,0,0,0,0,1024,0,0,0,0,0,0,0,0,0,0,0,512,0,0,0,0,0,0,0,0,2048,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,256,0,0,0,0,4096,0,0,0,0,0,0,0,0,3520,0,0,0,0,0,0,0,0,0,16384,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5632,22,122,0,0,0,0,0,0,0,0,128,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,8192,0,0,0,0,4,0,0,0,0,0,0,0,0,0,24576,353,1952,0,0,3392,2048,0,0,0,0,0,0,0,0,32768,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,468,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+	])
+
+{-# NOINLINE happyExpListPerState #-}
+happyExpListPerState st =
+    token_strs_expected
+  where token_strs = ["error","%dummy","%start_pProgram","%start_pMetaId","%start_pObject","%start_pBinding","%start_pListBinding","%start_pAttribute","%start_pListLabelId","%start_pRuleAttribute","%start_pPeeledObject","%start_pObjectHead","%start_pObjectAction","%start_pListObjectAction","Double","Integer","String","Bytes","Function","LabelId","AlphaIndex","LabelMetaId","TailMetaId","BindingsMetaId","ObjectMetaId","BytesMetaId","MetaFunctionName","IntegerSigned","DoubleSigned","StringRaw","Program","MetaId","Object","Binding","ListBinding","Attribute","ListLabelId","RuleAttribute","PeeledObject","ObjectHead","ObjectAction","ListObjectAction","'('","')'","'*'","','","'.'","'['","']'","'{'","'}'","'~'","'\916'","'\934'","'\934\775'","'\955'","'\958'","'\961'","'\966'","'\8614'","'\8709'","'\8869'","'\8968'","'\8969'","'\10214'","'\10215'","'\10509'","L_doubl","L_integ","L_quoted","L_Bytes","L_Function","L_LabelId","L_AlphaIndex","L_LabelMetaId","L_TailMetaId","L_BindingsMetaId","L_ObjectMetaId","L_BytesMetaId","L_MetaFunctionName","L_IntegerSigned","L_DoubleSigned","L_StringRaw","%eof"]
+        bit_start = st Prelude.* 84
+        bit_end = (st Prelude.+ 1) Prelude.* 84
+        read_bit = readArrayBit happyExpList
+        bits = Prelude.map read_bit [bit_start..bit_end Prelude.- 1]
+        bits_indexed = Prelude.zip bits [0..83]
+        token_strs_expected = Prelude.concatMap f bits_indexed
+        f (Prelude.False, _) = []
+        f (Prelude.True, nr) = [token_strs Prelude.!! nr]
+
+action_0 (50) = happyShift action_77
+action_0 (31) = happyGoto action_76
+action_0 _ = happyFail (happyExpListPerState 0)
+
+action_1 (75) = happyShift action_38
+action_1 (76) = happyShift action_74
+action_1 (77) = happyShift action_60
+action_1 (78) = happyShift action_61
+action_1 (79) = happyShift action_75
+action_1 (22) = happyGoto action_68
+action_1 (23) = happyGoto action_69
+action_1 (24) = happyGoto action_70
+action_1 (25) = happyGoto action_71
+action_1 (26) = happyGoto action_72
+action_1 (32) = happyGoto action_73
+action_1 _ = happyFail (happyExpListPerState 1)
+
+action_2 (54) = happyShift action_53
+action_2 (55) = happyShift action_54
+action_2 (57) = happyShift action_56
+action_2 (62) = happyShift action_57
+action_2 (63) = happyShift action_58
+action_2 (65) = happyShift action_59
+action_2 (78) = happyShift action_61
+action_2 (80) = happyShift action_62
+action_2 (81) = happyShift action_63
+action_2 (82) = happyShift action_64
+action_2 (83) = happyShift action_65
+action_2 (25) = happyGoto action_43
+action_2 (27) = happyGoto action_44
+action_2 (28) = happyGoto action_45
+action_2 (29) = happyGoto action_46
+action_2 (30) = happyGoto action_47
+action_2 (33) = happyGoto action_67
+action_2 _ = happyFail (happyExpListPerState 2)
+
+action_3 (52) = happyShift action_31
+action_3 (53) = happyShift action_52
+action_3 (54) = happyShift action_53
+action_3 (55) = happyShift action_54
+action_3 (56) = happyShift action_55
+action_3 (57) = happyShift action_56
+action_3 (58) = happyShift action_34
+action_3 (59) = happyShift action_35
+action_3 (62) = happyShift action_57
+action_3 (63) = happyShift action_58
+action_3 (65) = happyShift action_59
+action_3 (73) = happyShift action_36
+action_3 (74) = happyShift action_37
+action_3 (75) = happyShift action_38
+action_3 (77) = happyShift action_60
+action_3 (78) = happyShift action_61
+action_3 (80) = happyShift action_62
+action_3 (81) = happyShift action_63
+action_3 (82) = happyShift action_64
+action_3 (83) = happyShift action_65
+action_3 (20) = happyGoto action_26
+action_3 (21) = happyGoto action_27
+action_3 (22) = happyGoto action_28
+action_3 (24) = happyGoto action_42
+action_3 (25) = happyGoto action_43
+action_3 (27) = happyGoto action_44
+action_3 (28) = happyGoto action_45
+action_3 (29) = happyGoto action_46
+action_3 (30) = happyGoto action_47
+action_3 (33) = happyGoto action_48
+action_3 (34) = happyGoto action_66
+action_3 (36) = happyGoto action_51
+action_3 _ = happyFail (happyExpListPerState 3)
+
+action_4 (52) = happyShift action_31
+action_4 (53) = happyShift action_52
+action_4 (54) = happyShift action_53
+action_4 (55) = happyShift action_54
+action_4 (56) = happyShift action_55
+action_4 (57) = happyShift action_56
+action_4 (58) = happyShift action_34
+action_4 (59) = happyShift action_35
+action_4 (62) = happyShift action_57
+action_4 (63) = happyShift action_58
+action_4 (65) = happyShift action_59
+action_4 (73) = happyShift action_36
+action_4 (74) = happyShift action_37
+action_4 (75) = happyShift action_38
+action_4 (77) = happyShift action_60
+action_4 (78) = happyShift action_61
+action_4 (80) = happyShift action_62
+action_4 (81) = happyShift action_63
+action_4 (82) = happyShift action_64
+action_4 (83) = happyShift action_65
+action_4 (20) = happyGoto action_26
+action_4 (21) = happyGoto action_27
+action_4 (22) = happyGoto action_28
+action_4 (24) = happyGoto action_42
+action_4 (25) = happyGoto action_43
+action_4 (27) = happyGoto action_44
+action_4 (28) = happyGoto action_45
+action_4 (29) = happyGoto action_46
+action_4 (30) = happyGoto action_47
+action_4 (33) = happyGoto action_48
+action_4 (34) = happyGoto action_49
+action_4 (35) = happyGoto action_50
+action_4 (36) = happyGoto action_51
+action_4 _ = happyReduce_57
+
+action_5 (52) = happyShift action_31
+action_5 (58) = happyShift action_34
+action_5 (59) = happyShift action_35
+action_5 (73) = happyShift action_36
+action_5 (74) = happyShift action_37
+action_5 (75) = happyShift action_38
+action_5 (20) = happyGoto action_26
+action_5 (21) = happyGoto action_27
+action_5 (22) = happyGoto action_28
+action_5 (36) = happyGoto action_41
+action_5 _ = happyFail (happyExpListPerState 5)
+
+action_6 (73) = happyShift action_36
+action_6 (20) = happyGoto action_39
+action_6 (37) = happyGoto action_40
+action_6 _ = happyReduce_67
+
+action_7 (52) = happyShift action_31
+action_7 (53) = happyShift action_32
+action_7 (56) = happyShift action_33
+action_7 (58) = happyShift action_34
+action_7 (59) = happyShift action_35
+action_7 (73) = happyShift action_36
+action_7 (74) = happyShift action_37
+action_7 (75) = happyShift action_38
+action_7 (20) = happyGoto action_26
+action_7 (21) = happyGoto action_27
+action_7 (22) = happyGoto action_28
+action_7 (36) = happyGoto action_29
+action_7 (38) = happyGoto action_30
+action_7 _ = happyFail (happyExpListPerState 7)
+
+action_8 (54) = happyShift action_20
+action_8 (57) = happyShift action_21
+action_8 (62) = happyShift action_22
+action_8 (65) = happyShift action_23
+action_8 (39) = happyGoto action_24
+action_8 (40) = happyGoto action_25
+action_8 _ = happyFail (happyExpListPerState 8)
+
+action_9 (54) = happyShift action_20
+action_9 (57) = happyShift action_21
+action_9 (62) = happyShift action_22
+action_9 (65) = happyShift action_23
+action_9 (40) = happyGoto action_19
+action_9 _ = happyFail (happyExpListPerState 9)
+
+action_10 (43) = happyShift action_16
+action_10 (47) = happyShift action_17
+action_10 (41) = happyGoto action_18
+action_10 _ = happyFail (happyExpListPerState 10)
+
+action_11 (43) = happyShift action_16
+action_11 (47) = happyShift action_17
+action_11 (41) = happyGoto action_14
+action_11 (42) = happyGoto action_15
+action_11 _ = happyReduce_80
+
+action_12 (68) = happyShift action_13
+action_12 _ = happyFail (happyExpListPerState 12)
+
+action_13 _ = happyFail (happyExpListPerState 13)
+
+action_14 (43) = happyShift action_16
+action_14 (47) = happyShift action_17
+action_14 (41) = happyGoto action_14
+action_14 (42) = happyGoto action_97
+action_14 _ = happyReduce_80
+
+action_15 (84) = happyAccept
+action_15 _ = happyFail (happyExpListPerState 15)
+
+action_16 (52) = happyShift action_31
+action_16 (53) = happyShift action_52
+action_16 (54) = happyShift action_53
+action_16 (55) = happyShift action_54
+action_16 (56) = happyShift action_55
+action_16 (57) = happyShift action_56
+action_16 (58) = happyShift action_34
+action_16 (59) = happyShift action_35
+action_16 (62) = happyShift action_57
+action_16 (63) = happyShift action_58
+action_16 (65) = happyShift action_59
+action_16 (73) = happyShift action_36
+action_16 (74) = happyShift action_37
+action_16 (75) = happyShift action_38
+action_16 (77) = happyShift action_60
+action_16 (78) = happyShift action_61
+action_16 (80) = happyShift action_62
+action_16 (81) = happyShift action_63
+action_16 (82) = happyShift action_64
+action_16 (83) = happyShift action_65
+action_16 (20) = happyGoto action_26
+action_16 (21) = happyGoto action_27
+action_16 (22) = happyGoto action_28
+action_16 (24) = happyGoto action_42
+action_16 (25) = happyGoto action_43
+action_16 (27) = happyGoto action_44
+action_16 (28) = happyGoto action_45
+action_16 (29) = happyGoto action_46
+action_16 (30) = happyGoto action_47
+action_16 (33) = happyGoto action_48
+action_16 (34) = happyGoto action_49
+action_16 (35) = happyGoto action_96
+action_16 (36) = happyGoto action_51
+action_16 _ = happyReduce_57
+
+action_17 (52) = happyShift action_31
+action_17 (58) = happyShift action_34
+action_17 (59) = happyShift action_35
+action_17 (73) = happyShift action_36
+action_17 (74) = happyShift action_37
+action_17 (75) = happyShift action_38
+action_17 (20) = happyGoto action_26
+action_17 (21) = happyGoto action_27
+action_17 (22) = happyGoto action_28
+action_17 (36) = happyGoto action_95
+action_17 _ = happyFail (happyExpListPerState 17)
+
+action_18 (84) = happyAccept
+action_18 _ = happyFail (happyExpListPerState 18)
+
+action_19 (84) = happyAccept
+action_19 _ = happyFail (happyExpListPerState 19)
+
+action_20 _ = happyReduce_75
+
+action_21 _ = happyReduce_76
+
+action_22 _ = happyReduce_77
+
+action_23 (52) = happyShift action_31
+action_23 (53) = happyShift action_52
+action_23 (54) = happyShift action_53
+action_23 (55) = happyShift action_54
+action_23 (56) = happyShift action_55
+action_23 (57) = happyShift action_56
+action_23 (58) = happyShift action_34
+action_23 (59) = happyShift action_35
+action_23 (62) = happyShift action_57
+action_23 (63) = happyShift action_58
+action_23 (65) = happyShift action_59
+action_23 (73) = happyShift action_36
+action_23 (74) = happyShift action_37
+action_23 (75) = happyShift action_38
+action_23 (77) = happyShift action_60
+action_23 (78) = happyShift action_61
+action_23 (80) = happyShift action_62
+action_23 (81) = happyShift action_63
+action_23 (82) = happyShift action_64
+action_23 (83) = happyShift action_65
+action_23 (20) = happyGoto action_26
+action_23 (21) = happyGoto action_27
+action_23 (22) = happyGoto action_28
+action_23 (24) = happyGoto action_42
+action_23 (25) = happyGoto action_43
+action_23 (27) = happyGoto action_44
+action_23 (28) = happyGoto action_45
+action_23 (29) = happyGoto action_46
+action_23 (30) = happyGoto action_47
+action_23 (33) = happyGoto action_48
+action_23 (34) = happyGoto action_49
+action_23 (35) = happyGoto action_94
+action_23 (36) = happyGoto action_51
+action_23 _ = happyReduce_57
+
+action_24 (84) = happyAccept
+action_24 _ = happyFail (happyExpListPerState 24)
+
+action_25 (43) = happyShift action_16
+action_25 (47) = happyShift action_17
+action_25 (41) = happyGoto action_14
+action_25 (42) = happyGoto action_93
+action_25 _ = happyReduce_80
+
+action_26 _ = happyReduce_63
+
+action_27 _ = happyReduce_64
+
+action_28 _ = happyReduce_65
+
+action_29 _ = happyReduce_70
+
+action_30 (84) = happyAccept
+action_30 _ = happyFail (happyExpListPerState 30)
+
+action_31 (59) = happyShift action_92
+action_31 (73) = happyShift action_36
+action_31 (20) = happyGoto action_91
+action_31 _ = happyFail (happyExpListPerState 31)
+
+action_32 _ = happyReduce_71
+
+action_33 _ = happyReduce_72
+
+action_34 _ = happyReduce_62
+
+action_35 _ = happyReduce_60
+
+action_36 _ = happyReduce_17
+
+action_37 _ = happyReduce_18
+
+action_38 _ = happyReduce_19
+
+action_39 (46) = happyShift action_90
+action_39 _ = happyReduce_68
+
+action_40 (84) = happyAccept
+action_40 _ = happyFail (happyExpListPerState 40)
+
+action_41 (84) = happyAccept
+action_41 _ = happyFail (happyExpListPerState 41)
+
+action_42 _ = happyReduce_55
+
+action_43 _ = happyReduce_46
+
+action_44 (43) = happyShift action_89
+action_44 _ = happyFail (happyExpListPerState 44)
+
+action_45 _ = happyReduce_42
+
+action_46 _ = happyReduce_43
+
+action_47 _ = happyReduce_41
+
+action_48 (43) = happyShift action_79
+action_48 (45) = happyShift action_80
+action_48 (47) = happyShift action_81
+action_48 (48) = happyShift action_82
+action_48 _ = happyReduce_50
+
+action_49 (46) = happyShift action_88
+action_49 _ = happyReduce_58
+
+action_50 (84) = happyAccept
+action_50 _ = happyFail (happyExpListPerState 50)
+
+action_51 (60) = happyShift action_87
+action_51 _ = happyFail (happyExpListPerState 51)
+
+action_52 (67) = happyShift action_86
+action_52 _ = happyFail (happyExpListPerState 52)
+
+action_53 _ = happyReduce_37
+
+action_54 _ = happyReduce_38
+
+action_55 (67) = happyShift action_85
+action_55 _ = happyFail (happyExpListPerState 55)
+
+action_56 _ = happyReduce_39
+
+action_57 _ = happyReduce_40
+
+action_58 (54) = happyShift action_53
+action_58 (55) = happyShift action_54
+action_58 (57) = happyShift action_56
+action_58 (62) = happyShift action_57
+action_58 (63) = happyShift action_58
+action_58 (65) = happyShift action_59
+action_58 (78) = happyShift action_61
+action_58 (80) = happyShift action_62
+action_58 (81) = happyShift action_63
+action_58 (82) = happyShift action_64
+action_58 (83) = happyShift action_65
+action_58 (25) = happyGoto action_43
+action_58 (27) = happyGoto action_44
+action_58 (28) = happyGoto action_45
+action_58 (29) = happyGoto action_46
+action_58 (30) = happyGoto action_47
+action_58 (33) = happyGoto action_84
+action_58 _ = happyFail (happyExpListPerState 58)
+
+action_59 (52) = happyShift action_31
+action_59 (53) = happyShift action_52
+action_59 (54) = happyShift action_53
+action_59 (55) = happyShift action_54
+action_59 (56) = happyShift action_55
+action_59 (57) = happyShift action_56
+action_59 (58) = happyShift action_34
+action_59 (59) = happyShift action_35
+action_59 (62) = happyShift action_57
+action_59 (63) = happyShift action_58
+action_59 (65) = happyShift action_59
+action_59 (73) = happyShift action_36
+action_59 (74) = happyShift action_37
+action_59 (75) = happyShift action_38
+action_59 (77) = happyShift action_60
+action_59 (78) = happyShift action_61
+action_59 (80) = happyShift action_62
+action_59 (81) = happyShift action_63
+action_59 (82) = happyShift action_64
+action_59 (83) = happyShift action_65
+action_59 (20) = happyGoto action_26
+action_59 (21) = happyGoto action_27
+action_59 (22) = happyGoto action_28
+action_59 (24) = happyGoto action_42
+action_59 (25) = happyGoto action_43
+action_59 (27) = happyGoto action_44
+action_59 (28) = happyGoto action_45
+action_59 (29) = happyGoto action_46
+action_59 (30) = happyGoto action_47
+action_59 (33) = happyGoto action_48
+action_59 (34) = happyGoto action_49
+action_59 (35) = happyGoto action_83
+action_59 (36) = happyGoto action_51
+action_59 _ = happyReduce_57
+
+action_60 _ = happyReduce_21
+
+action_61 _ = happyReduce_22
+
+action_62 _ = happyReduce_24
+
+action_63 _ = happyReduce_25
+
+action_64 _ = happyReduce_26
+
+action_65 _ = happyReduce_27
+
+action_66 (84) = happyAccept
+action_66 _ = happyFail (happyExpListPerState 66)
+
+action_67 (43) = happyShift action_79
+action_67 (45) = happyShift action_80
+action_67 (47) = happyShift action_81
+action_67 (48) = happyShift action_82
+action_67 (84) = happyAccept
+action_67 _ = happyFail (happyExpListPerState 67)
+
+action_68 _ = happyReduce_29
+
+action_69 _ = happyReduce_30
+
+action_70 _ = happyReduce_31
+
+action_71 _ = happyReduce_32
+
+action_72 _ = happyReduce_33
+
+action_73 (84) = happyAccept
+action_73 _ = happyFail (happyExpListPerState 73)
+
+action_74 _ = happyReduce_20
+
+action_75 _ = happyReduce_23
+
+action_76 (84) = happyAccept
+action_76 _ = happyFail (happyExpListPerState 76)
+
+action_77 (65) = happyShift action_78
+action_77 _ = happyFail (happyExpListPerState 77)
+
+action_78 (52) = happyShift action_31
+action_78 (53) = happyShift action_52
+action_78 (54) = happyShift action_53
+action_78 (55) = happyShift action_54
+action_78 (56) = happyShift action_55
+action_78 (57) = happyShift action_56
+action_78 (58) = happyShift action_34
+action_78 (59) = happyShift action_35
+action_78 (62) = happyShift action_57
+action_78 (63) = happyShift action_58
+action_78 (65) = happyShift action_59
+action_78 (73) = happyShift action_36
+action_78 (74) = happyShift action_37
+action_78 (75) = happyShift action_38
+action_78 (77) = happyShift action_60
+action_78 (78) = happyShift action_61
+action_78 (80) = happyShift action_62
+action_78 (81) = happyShift action_63
+action_78 (82) = happyShift action_64
+action_78 (83) = happyShift action_65
+action_78 (20) = happyGoto action_26
+action_78 (21) = happyGoto action_27
+action_78 (22) = happyGoto action_28
+action_78 (24) = happyGoto action_42
+action_78 (25) = happyGoto action_43
+action_78 (27) = happyGoto action_44
+action_78 (28) = happyGoto action_45
+action_78 (29) = happyGoto action_46
+action_78 (30) = happyGoto action_47
+action_78 (33) = happyGoto action_48
+action_78 (34) = happyGoto action_49
+action_78 (35) = happyGoto action_119
+action_78 (36) = happyGoto action_51
+action_78 _ = happyReduce_57
+
+action_79 (52) = happyShift action_31
+action_79 (53) = happyShift action_52
+action_79 (54) = happyShift action_53
+action_79 (55) = happyShift action_54
+action_79 (56) = happyShift action_55
+action_79 (57) = happyShift action_56
+action_79 (58) = happyShift action_34
+action_79 (59) = happyShift action_35
+action_79 (62) = happyShift action_57
+action_79 (63) = happyShift action_58
+action_79 (65) = happyShift action_59
+action_79 (73) = happyShift action_36
+action_79 (74) = happyShift action_37
+action_79 (75) = happyShift action_38
+action_79 (77) = happyShift action_60
+action_79 (78) = happyShift action_61
+action_79 (80) = happyShift action_62
+action_79 (81) = happyShift action_63
+action_79 (82) = happyShift action_64
+action_79 (83) = happyShift action_65
+action_79 (20) = happyGoto action_26
+action_79 (21) = happyGoto action_27
+action_79 (22) = happyGoto action_28
+action_79 (24) = happyGoto action_42
+action_79 (25) = happyGoto action_43
+action_79 (27) = happyGoto action_44
+action_79 (28) = happyGoto action_45
+action_79 (29) = happyGoto action_46
+action_79 (30) = happyGoto action_47
+action_79 (33) = happyGoto action_48
+action_79 (34) = happyGoto action_49
+action_79 (35) = happyGoto action_118
+action_79 (36) = happyGoto action_51
+action_79 _ = happyReduce_57
+
+action_80 (76) = happyShift action_74
+action_80 (23) = happyGoto action_117
+action_80 _ = happyFail (happyExpListPerState 80)
+
+action_81 (52) = happyShift action_31
+action_81 (58) = happyShift action_34
+action_81 (59) = happyShift action_35
+action_81 (73) = happyShift action_36
+action_81 (74) = happyShift action_37
+action_81 (75) = happyShift action_38
+action_81 (20) = happyGoto action_26
+action_81 (21) = happyGoto action_27
+action_81 (22) = happyGoto action_28
+action_81 (36) = happyGoto action_116
+action_81 _ = happyFail (happyExpListPerState 81)
+
+action_82 (57) = happyShift action_115
+action_82 _ = happyFail (happyExpListPerState 82)
+
+action_83 (66) = happyShift action_114
+action_83 _ = happyFail (happyExpListPerState 83)
+
+action_84 (43) = happyShift action_79
+action_84 (45) = happyShift action_80
+action_84 (46) = happyShift action_113
+action_84 (47) = happyShift action_81
+action_84 (48) = happyShift action_82
+action_84 _ = happyFail (happyExpListPerState 84)
+
+action_85 (72) = happyShift action_112
+action_85 (19) = happyGoto action_111
+action_85 _ = happyFail (happyExpListPerState 85)
+
+action_86 (61) = happyShift action_109
+action_86 (71) = happyShift action_110
+action_86 (79) = happyShift action_75
+action_86 (18) = happyGoto action_107
+action_86 (26) = happyGoto action_108
+action_86 _ = happyFail (happyExpListPerState 86)
+
+action_87 (54) = happyShift action_53
+action_87 (55) = happyShift action_54
+action_87 (57) = happyShift action_56
+action_87 (61) = happyShift action_106
+action_87 (62) = happyShift action_57
+action_87 (63) = happyShift action_58
+action_87 (65) = happyShift action_59
+action_87 (78) = happyShift action_61
+action_87 (80) = happyShift action_62
+action_87 (81) = happyShift action_63
+action_87 (82) = happyShift action_64
+action_87 (83) = happyShift action_65
+action_87 (25) = happyGoto action_43
+action_87 (27) = happyGoto action_44
+action_87 (28) = happyGoto action_45
+action_87 (29) = happyGoto action_46
+action_87 (30) = happyGoto action_47
+action_87 (33) = happyGoto action_105
+action_87 _ = happyFail (happyExpListPerState 87)
+
+action_88 (52) = happyShift action_31
+action_88 (53) = happyShift action_52
+action_88 (54) = happyShift action_53
+action_88 (55) = happyShift action_54
+action_88 (56) = happyShift action_55
+action_88 (57) = happyShift action_56
+action_88 (58) = happyShift action_34
+action_88 (59) = happyShift action_35
+action_88 (62) = happyShift action_57
+action_88 (63) = happyShift action_58
+action_88 (65) = happyShift action_59
+action_88 (73) = happyShift action_36
+action_88 (74) = happyShift action_37
+action_88 (75) = happyShift action_38
+action_88 (77) = happyShift action_60
+action_88 (78) = happyShift action_61
+action_88 (80) = happyShift action_62
+action_88 (81) = happyShift action_63
+action_88 (82) = happyShift action_64
+action_88 (83) = happyShift action_65
+action_88 (20) = happyGoto action_26
+action_88 (21) = happyGoto action_27
+action_88 (22) = happyGoto action_28
+action_88 (24) = happyGoto action_42
+action_88 (25) = happyGoto action_43
+action_88 (27) = happyGoto action_44
+action_88 (28) = happyGoto action_45
+action_88 (29) = happyGoto action_46
+action_88 (30) = happyGoto action_47
+action_88 (33) = happyGoto action_48
+action_88 (34) = happyGoto action_49
+action_88 (35) = happyGoto action_104
+action_88 (36) = happyGoto action_51
+action_88 _ = happyReduce_57
+
+action_89 (54) = happyShift action_53
+action_89 (55) = happyShift action_54
+action_89 (57) = happyShift action_56
+action_89 (62) = happyShift action_57
+action_89 (63) = happyShift action_58
+action_89 (65) = happyShift action_59
+action_89 (78) = happyShift action_61
+action_89 (80) = happyShift action_62
+action_89 (81) = happyShift action_63
+action_89 (82) = happyShift action_64
+action_89 (83) = happyShift action_65
+action_89 (25) = happyGoto action_43
+action_89 (27) = happyGoto action_44
+action_89 (28) = happyGoto action_45
+action_89 (29) = happyGoto action_46
+action_89 (30) = happyGoto action_47
+action_89 (33) = happyGoto action_103
+action_89 _ = happyFail (happyExpListPerState 89)
+
+action_90 (73) = happyShift action_36
+action_90 (20) = happyGoto action_39
+action_90 (37) = happyGoto action_102
+action_90 _ = happyReduce_67
+
+action_91 (43) = happyShift action_101
+action_91 _ = happyFail (happyExpListPerState 91)
+
+action_92 (43) = happyShift action_100
+action_92 _ = happyFail (happyExpListPerState 92)
+
+action_93 _ = happyReduce_73
+
+action_94 (66) = happyShift action_99
+action_94 _ = happyFail (happyExpListPerState 94)
+
+action_95 _ = happyReduce_79
+
+action_96 (44) = happyShift action_98
+action_96 _ = happyFail (happyExpListPerState 96)
+
+action_97 _ = happyReduce_81
+
+action_98 _ = happyReduce_78
+
+action_99 _ = happyReduce_74
+
+action_100 (73) = happyShift action_36
+action_100 (20) = happyGoto action_39
+action_100 (37) = happyGoto action_126
+action_100 _ = happyReduce_67
+
+action_101 (73) = happyShift action_36
+action_101 (20) = happyGoto action_39
+action_101 (37) = happyGoto action_125
+action_101 _ = happyReduce_67
+
+action_102 _ = happyReduce_69
+
+action_103 (43) = happyShift action_79
+action_103 (44) = happyShift action_124
+action_103 (45) = happyShift action_80
+action_103 (47) = happyShift action_81
+action_103 (48) = happyShift action_82
+action_103 _ = happyFail (happyExpListPerState 103)
+
+action_104 _ = happyReduce_59
+
+action_105 (43) = happyShift action_79
+action_105 (45) = happyShift action_80
+action_105 (47) = happyShift action_81
+action_105 (48) = happyShift action_82
+action_105 _ = happyReduce_49
+
+action_106 _ = happyReduce_51
+
+action_107 _ = happyReduce_52
+
+action_108 _ = happyReduce_56
+
+action_109 _ = happyReduce_53
+
+action_110 _ = happyReduce_15
+
+action_111 _ = happyReduce_54
+
+action_112 _ = happyReduce_16
+
+action_113 (54) = happyShift action_53
+action_113 (55) = happyShift action_54
+action_113 (57) = happyShift action_56
+action_113 (62) = happyShift action_57
+action_113 (63) = happyShift action_58
+action_113 (65) = happyShift action_59
+action_113 (78) = happyShift action_61
+action_113 (80) = happyShift action_62
+action_113 (81) = happyShift action_63
+action_113 (82) = happyShift action_64
+action_113 (83) = happyShift action_65
+action_113 (25) = happyGoto action_43
+action_113 (27) = happyGoto action_44
+action_113 (28) = happyGoto action_45
+action_113 (29) = happyGoto action_46
+action_113 (30) = happyGoto action_47
+action_113 (33) = happyGoto action_123
+action_113 _ = happyFail (happyExpListPerState 113)
+
+action_114 _ = happyReduce_34
+
+action_115 (60) = happyShift action_122
+action_115 _ = happyFail (happyExpListPerState 115)
+
+action_116 _ = happyReduce_36
+
+action_117 _ = happyReduce_47
+
+action_118 (44) = happyShift action_121
+action_118 _ = happyFail (happyExpListPerState 118)
+
+action_119 (66) = happyShift action_120
+action_119 _ = happyFail (happyExpListPerState 119)
+
+action_120 (51) = happyShift action_131
+action_120 _ = happyFail (happyExpListPerState 120)
+
+action_121 _ = happyReduce_35
+
+action_122 (54) = happyShift action_53
+action_122 (55) = happyShift action_54
+action_122 (57) = happyShift action_56
+action_122 (62) = happyShift action_57
+action_122 (63) = happyShift action_58
+action_122 (65) = happyShift action_59
+action_122 (78) = happyShift action_61
+action_122 (80) = happyShift action_62
+action_122 (81) = happyShift action_63
+action_122 (82) = happyShift action_64
+action_122 (83) = happyShift action_65
+action_122 (25) = happyGoto action_43
+action_122 (27) = happyGoto action_44
+action_122 (28) = happyGoto action_45
+action_122 (29) = happyGoto action_46
+action_122 (30) = happyGoto action_47
+action_122 (33) = happyGoto action_130
+action_122 _ = happyFail (happyExpListPerState 122)
+
+action_123 (43) = happyShift action_79
+action_123 (45) = happyShift action_80
+action_123 (47) = happyShift action_81
+action_123 (48) = happyShift action_82
+action_123 (64) = happyShift action_129
+action_123 _ = happyFail (happyExpListPerState 123)
+
+action_124 _ = happyReduce_48
+
+action_125 (44) = happyShift action_128
+action_125 _ = happyFail (happyExpListPerState 125)
+
+action_126 (44) = happyShift action_127
+action_126 _ = happyFail (happyExpListPerState 126)
+
+action_127 _ = happyReduce_61
+
+action_128 _ = happyReduce_66
+
+action_129 _ = happyReduce_45
+
+action_130 (43) = happyShift action_79
+action_130 (45) = happyShift action_80
+action_130 (47) = happyShift action_81
+action_130 (48) = happyShift action_82
+action_130 (49) = happyShift action_132
+action_130 _ = happyFail (happyExpListPerState 130)
+
+action_131 _ = happyReduce_28
+
+action_132 _ = happyReduce_44
+
+happyReduce_12 = happySpecReduce_1  15 happyReduction_12
+happyReduction_12 (HappyTerminal (PT _ (TD happy_var_1)))
+	 =  HappyAbsSyn15
+		 ((read happy_var_1) :: Double
+	)
+happyReduction_12 _  = notHappyAtAll 
+
+happyReduce_13 = happySpecReduce_1  16 happyReduction_13
+happyReduction_13 (HappyTerminal (PT _ (TI happy_var_1)))
+	 =  HappyAbsSyn16
+		 ((read happy_var_1) :: Integer
+	)
+happyReduction_13 _  = notHappyAtAll 
+
+happyReduce_14 = happySpecReduce_1  17 happyReduction_14
+happyReduction_14 (HappyTerminal (PT _ (TL happy_var_1)))
+	 =  HappyAbsSyn17
+		 (happy_var_1
+	)
+happyReduction_14 _  = notHappyAtAll 
+
+happyReduce_15 = happySpecReduce_1  18 happyReduction_15
+happyReduction_15 (HappyTerminal (PT _ (T_Bytes happy_var_1)))
+	 =  HappyAbsSyn18
+		 (Language.EO.Phi.Syntax.Abs.Bytes happy_var_1
+	)
+happyReduction_15 _  = notHappyAtAll 
+
+happyReduce_16 = happySpecReduce_1  19 happyReduction_16
+happyReduction_16 (HappyTerminal (PT _ (T_Function happy_var_1)))
+	 =  HappyAbsSyn19
+		 (Language.EO.Phi.Syntax.Abs.Function happy_var_1
+	)
+happyReduction_16 _  = notHappyAtAll 
+
+happyReduce_17 = happySpecReduce_1  20 happyReduction_17
+happyReduction_17 (HappyTerminal (PT _ (T_LabelId happy_var_1)))
+	 =  HappyAbsSyn20
+		 (Language.EO.Phi.Syntax.Abs.LabelId happy_var_1
+	)
+happyReduction_17 _  = notHappyAtAll 
+
+happyReduce_18 = happySpecReduce_1  21 happyReduction_18
+happyReduction_18 (HappyTerminal (PT _ (T_AlphaIndex happy_var_1)))
+	 =  HappyAbsSyn21
+		 (Language.EO.Phi.Syntax.Abs.AlphaIndex happy_var_1
+	)
+happyReduction_18 _  = notHappyAtAll 
+
+happyReduce_19 = happySpecReduce_1  22 happyReduction_19
+happyReduction_19 (HappyTerminal (PT _ (T_LabelMetaId happy_var_1)))
+	 =  HappyAbsSyn22
+		 (Language.EO.Phi.Syntax.Abs.LabelMetaId happy_var_1
+	)
+happyReduction_19 _  = notHappyAtAll 
+
+happyReduce_20 = happySpecReduce_1  23 happyReduction_20
+happyReduction_20 (HappyTerminal (PT _ (T_TailMetaId happy_var_1)))
+	 =  HappyAbsSyn23
+		 (Language.EO.Phi.Syntax.Abs.TailMetaId happy_var_1
+	)
+happyReduction_20 _  = notHappyAtAll 
+
+happyReduce_21 = happySpecReduce_1  24 happyReduction_21
+happyReduction_21 (HappyTerminal (PT _ (T_BindingsMetaId happy_var_1)))
+	 =  HappyAbsSyn24
+		 (Language.EO.Phi.Syntax.Abs.BindingsMetaId happy_var_1
+	)
+happyReduction_21 _  = notHappyAtAll 
+
+happyReduce_22 = happySpecReduce_1  25 happyReduction_22
+happyReduction_22 (HappyTerminal (PT _ (T_ObjectMetaId happy_var_1)))
+	 =  HappyAbsSyn25
+		 (Language.EO.Phi.Syntax.Abs.ObjectMetaId happy_var_1
+	)
+happyReduction_22 _  = notHappyAtAll 
+
+happyReduce_23 = happySpecReduce_1  26 happyReduction_23
+happyReduction_23 (HappyTerminal (PT _ (T_BytesMetaId happy_var_1)))
+	 =  HappyAbsSyn26
+		 (Language.EO.Phi.Syntax.Abs.BytesMetaId happy_var_1
+	)
+happyReduction_23 _  = notHappyAtAll 
+
+happyReduce_24 = happySpecReduce_1  27 happyReduction_24
+happyReduction_24 (HappyTerminal (PT _ (T_MetaFunctionName happy_var_1)))
+	 =  HappyAbsSyn27
+		 (Language.EO.Phi.Syntax.Abs.MetaFunctionName happy_var_1
+	)
+happyReduction_24 _  = notHappyAtAll 
+
+happyReduce_25 = happySpecReduce_1  28 happyReduction_25
+happyReduction_25 (HappyTerminal (PT _ (T_IntegerSigned happy_var_1)))
+	 =  HappyAbsSyn28
+		 (Language.EO.Phi.Syntax.Abs.IntegerSigned happy_var_1
+	)
+happyReduction_25 _  = notHappyAtAll 
+
+happyReduce_26 = happySpecReduce_1  29 happyReduction_26
+happyReduction_26 (HappyTerminal (PT _ (T_DoubleSigned happy_var_1)))
+	 =  HappyAbsSyn29
+		 (Language.EO.Phi.Syntax.Abs.DoubleSigned happy_var_1
+	)
+happyReduction_26 _  = notHappyAtAll 
+
+happyReduce_27 = happySpecReduce_1  30 happyReduction_27
+happyReduction_27 (HappyTerminal (PT _ (T_StringRaw happy_var_1)))
+	 =  HappyAbsSyn30
+		 (Language.EO.Phi.Syntax.Abs.StringRaw happy_var_1
+	)
+happyReduction_27 _  = notHappyAtAll 
+
+happyReduce_28 = happyReduce 5 31 happyReduction_28
+happyReduction_28 (_ `HappyStk`
+	_ `HappyStk`
+	(HappyAbsSyn35  happy_var_3) `HappyStk`
+	_ `HappyStk`
+	_ `HappyStk`
+	happyRest)
+	 = HappyAbsSyn31
+		 (Language.EO.Phi.Syntax.Abs.Program happy_var_3
+	) `HappyStk` happyRest
+
+happyReduce_29 = happySpecReduce_1  32 happyReduction_29
+happyReduction_29 (HappyAbsSyn22  happy_var_1)
+	 =  HappyAbsSyn32
+		 (Language.EO.Phi.Syntax.Abs.MetaIdLabel happy_var_1
+	)
+happyReduction_29 _  = notHappyAtAll 
+
+happyReduce_30 = happySpecReduce_1  32 happyReduction_30
+happyReduction_30 (HappyAbsSyn23  happy_var_1)
+	 =  HappyAbsSyn32
+		 (Language.EO.Phi.Syntax.Abs.MetaIdTail happy_var_1
+	)
+happyReduction_30 _  = notHappyAtAll 
+
+happyReduce_31 = happySpecReduce_1  32 happyReduction_31
+happyReduction_31 (HappyAbsSyn24  happy_var_1)
+	 =  HappyAbsSyn32
+		 (Language.EO.Phi.Syntax.Abs.MetaIdBindings happy_var_1
+	)
+happyReduction_31 _  = notHappyAtAll 
+
+happyReduce_32 = happySpecReduce_1  32 happyReduction_32
+happyReduction_32 (HappyAbsSyn25  happy_var_1)
+	 =  HappyAbsSyn32
+		 (Language.EO.Phi.Syntax.Abs.MetaIdObject happy_var_1
+	)
+happyReduction_32 _  = notHappyAtAll 
+
+happyReduce_33 = happySpecReduce_1  32 happyReduction_33
+happyReduction_33 (HappyAbsSyn26  happy_var_1)
+	 =  HappyAbsSyn32
+		 (Language.EO.Phi.Syntax.Abs.MetaIdBytes happy_var_1
+	)
+happyReduction_33 _  = notHappyAtAll 
+
+happyReduce_34 = happySpecReduce_3  33 happyReduction_34
+happyReduction_34 _
+	(HappyAbsSyn35  happy_var_2)
+	_
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.Formation happy_var_2
+	)
+happyReduction_34 _ _ _  = notHappyAtAll 
+
+happyReduce_35 = happyReduce 4 33 happyReduction_35
+happyReduction_35 (_ `HappyStk`
+	(HappyAbsSyn35  happy_var_3) `HappyStk`
+	_ `HappyStk`
+	(HappyAbsSyn33  happy_var_1) `HappyStk`
+	happyRest)
+	 = HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.Application happy_var_1 happy_var_3
+	) `HappyStk` happyRest
+
+happyReduce_36 = happySpecReduce_3  33 happyReduction_36
+happyReduction_36 (HappyAbsSyn36  happy_var_3)
+	_
+	(HappyAbsSyn33  happy_var_1)
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.ObjectDispatch happy_var_1 happy_var_3
+	)
+happyReduction_36 _ _ _  = notHappyAtAll 
+
+happyReduce_37 = happySpecReduce_1  33 happyReduction_37
+happyReduction_37 _
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.GlobalObject
+	)
+
+happyReduce_38 = happySpecReduce_1  33 happyReduction_38
+happyReduction_38 _
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.GlobalObjectPhiOrg
+	)
+
+happyReduce_39 = happySpecReduce_1  33 happyReduction_39
+happyReduction_39 _
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.ThisObject
+	)
+
+happyReduce_40 = happySpecReduce_1  33 happyReduction_40
+happyReduction_40 _
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.Termination
+	)
+
+happyReduce_41 = happySpecReduce_1  33 happyReduction_41
+happyReduction_41 (HappyAbsSyn30  happy_var_1)
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.ConstStringRaw happy_var_1
+	)
+happyReduction_41 _  = notHappyAtAll 
+
+happyReduce_42 = happySpecReduce_1  33 happyReduction_42
+happyReduction_42 (HappyAbsSyn28  happy_var_1)
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.ConstIntRaw happy_var_1
+	)
+happyReduction_42 _  = notHappyAtAll 
+
+happyReduce_43 = happySpecReduce_1  33 happyReduction_43
+happyReduction_43 (HappyAbsSyn29  happy_var_1)
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.ConstFloatRaw happy_var_1
+	)
+happyReduction_43 _  = notHappyAtAll 
+
+happyReduce_44 = happyReduce 6 33 happyReduction_44
+happyReduction_44 (_ `HappyStk`
+	(HappyAbsSyn33  happy_var_5) `HappyStk`
+	_ `HappyStk`
+	_ `HappyStk`
+	_ `HappyStk`
+	(HappyAbsSyn33  happy_var_1) `HappyStk`
+	happyRest)
+	 = HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.MetaSubstThis happy_var_1 happy_var_5
+	) `HappyStk` happyRest
+
+happyReduce_45 = happyReduce 5 33 happyReduction_45
+happyReduction_45 (_ `HappyStk`
+	(HappyAbsSyn33  happy_var_4) `HappyStk`
+	_ `HappyStk`
+	(HappyAbsSyn33  happy_var_2) `HappyStk`
+	_ `HappyStk`
+	happyRest)
+	 = HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.MetaContextualize happy_var_2 happy_var_4
+	) `HappyStk` happyRest
+
+happyReduce_46 = happySpecReduce_1  33 happyReduction_46
+happyReduction_46 (HappyAbsSyn25  happy_var_1)
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.MetaObject happy_var_1
+	)
+happyReduction_46 _  = notHappyAtAll 
+
+happyReduce_47 = happySpecReduce_3  33 happyReduction_47
+happyReduction_47 (HappyAbsSyn23  happy_var_3)
+	_
+	(HappyAbsSyn33  happy_var_1)
+	 =  HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.MetaTailContext happy_var_1 happy_var_3
+	)
+happyReduction_47 _ _ _  = notHappyAtAll 
+
+happyReduce_48 = happyReduce 4 33 happyReduction_48
+happyReduction_48 (_ `HappyStk`
+	(HappyAbsSyn33  happy_var_3) `HappyStk`
+	_ `HappyStk`
+	(HappyAbsSyn27  happy_var_1) `HappyStk`
+	happyRest)
+	 = HappyAbsSyn33
+		 (Language.EO.Phi.Syntax.Abs.MetaFunction happy_var_1 happy_var_3
+	) `HappyStk` happyRest
+
+happyReduce_49 = happySpecReduce_3  34 happyReduction_49
+happyReduction_49 (HappyAbsSyn33  happy_var_3)
+	_
+	(HappyAbsSyn36  happy_var_1)
+	 =  HappyAbsSyn34
+		 (Language.EO.Phi.Syntax.Abs.AlphaBinding happy_var_1 happy_var_3
+	)
+happyReduction_49 _ _ _  = notHappyAtAll 
+
+happyReduce_50 = happySpecReduce_1  34 happyReduction_50
+happyReduction_50 (HappyAbsSyn33  happy_var_1)
+	 =  HappyAbsSyn34
+		 (Language.EO.Phi.Syntax.Abs.AlphaBindingSugar happy_var_1
+	)
+happyReduction_50 _  = notHappyAtAll 
+
+happyReduce_51 = happySpecReduce_3  34 happyReduction_51
+happyReduction_51 _
+	_
+	(HappyAbsSyn36  happy_var_1)
+	 =  HappyAbsSyn34
+		 (Language.EO.Phi.Syntax.Abs.EmptyBinding happy_var_1
+	)
+happyReduction_51 _ _ _  = notHappyAtAll 
+
+happyReduce_52 = happySpecReduce_3  34 happyReduction_52
+happyReduction_52 (HappyAbsSyn18  happy_var_3)
+	_
+	_
+	 =  HappyAbsSyn34
+		 (Language.EO.Phi.Syntax.Abs.DeltaBinding happy_var_3
+	)
+happyReduction_52 _ _ _  = notHappyAtAll 
+
+happyReduce_53 = happySpecReduce_3  34 happyReduction_53
+happyReduction_53 _
+	_
+	_
+	 =  HappyAbsSyn34
+		 (Language.EO.Phi.Syntax.Abs.DeltaEmptyBinding
+	)
+
+happyReduce_54 = happySpecReduce_3  34 happyReduction_54
+happyReduction_54 (HappyAbsSyn19  happy_var_3)
+	_
+	_
+	 =  HappyAbsSyn34
+		 (Language.EO.Phi.Syntax.Abs.LambdaBinding happy_var_3
+	)
+happyReduction_54 _ _ _  = notHappyAtAll 
+
+happyReduce_55 = happySpecReduce_1  34 happyReduction_55
+happyReduction_55 (HappyAbsSyn24  happy_var_1)
+	 =  HappyAbsSyn34
+		 (Language.EO.Phi.Syntax.Abs.MetaBindings happy_var_1
+	)
+happyReduction_55 _  = notHappyAtAll 
+
+happyReduce_56 = happySpecReduce_3  34 happyReduction_56
+happyReduction_56 (HappyAbsSyn26  happy_var_3)
+	_
+	_
+	 =  HappyAbsSyn34
+		 (Language.EO.Phi.Syntax.Abs.MetaDeltaBinding happy_var_3
+	)
+happyReduction_56 _ _ _  = notHappyAtAll 
+
+happyReduce_57 = happySpecReduce_0  35 happyReduction_57
+happyReduction_57  =  HappyAbsSyn35
+		 ([]
+	)
+
+happyReduce_58 = happySpecReduce_1  35 happyReduction_58
+happyReduction_58 (HappyAbsSyn34  happy_var_1)
+	 =  HappyAbsSyn35
+		 ((:[]) happy_var_1
+	)
+happyReduction_58 _  = notHappyAtAll 
+
+happyReduce_59 = happySpecReduce_3  35 happyReduction_59
+happyReduction_59 (HappyAbsSyn35  happy_var_3)
+	_
+	(HappyAbsSyn34  happy_var_1)
+	 =  HappyAbsSyn35
+		 ((:) happy_var_1 happy_var_3
+	)
+happyReduction_59 _ _ _  = notHappyAtAll 
+
+happyReduce_60 = happySpecReduce_1  36 happyReduction_60
+happyReduction_60 _
+	 =  HappyAbsSyn36
+		 (Language.EO.Phi.Syntax.Abs.Phi
+	)
+
+happyReduce_61 = happyReduce 5 36 happyReduction_61
+happyReduction_61 (_ `HappyStk`
+	(HappyAbsSyn37  happy_var_4) `HappyStk`
+	_ `HappyStk`
+	_ `HappyStk`
+	_ `HappyStk`
+	happyRest)
+	 = HappyAbsSyn36
+		 (Language.EO.Phi.Syntax.Abs.PhiSugar happy_var_4
+	) `HappyStk` happyRest
+
+happyReduce_62 = happySpecReduce_1  36 happyReduction_62
+happyReduction_62 _
+	 =  HappyAbsSyn36
+		 (Language.EO.Phi.Syntax.Abs.Rho
+	)
+
+happyReduce_63 = happySpecReduce_1  36 happyReduction_63
+happyReduction_63 (HappyAbsSyn20  happy_var_1)
+	 =  HappyAbsSyn36
+		 (Language.EO.Phi.Syntax.Abs.Label happy_var_1
+	)
+happyReduction_63 _  = notHappyAtAll 
+
+happyReduce_64 = happySpecReduce_1  36 happyReduction_64
+happyReduction_64 (HappyAbsSyn21  happy_var_1)
+	 =  HappyAbsSyn36
+		 (Language.EO.Phi.Syntax.Abs.Alpha happy_var_1
+	)
+happyReduction_64 _  = notHappyAtAll 
+
+happyReduce_65 = happySpecReduce_1  36 happyReduction_65
+happyReduction_65 (HappyAbsSyn22  happy_var_1)
+	 =  HappyAbsSyn36
+		 (Language.EO.Phi.Syntax.Abs.MetaAttr happy_var_1
+	)
+happyReduction_65 _  = notHappyAtAll 
+
+happyReduce_66 = happyReduce 5 36 happyReduction_66
+happyReduction_66 (_ `HappyStk`
+	(HappyAbsSyn37  happy_var_4) `HappyStk`
+	_ `HappyStk`
+	(HappyAbsSyn20  happy_var_2) `HappyStk`
+	_ `HappyStk`
+	happyRest)
+	 = HappyAbsSyn36
+		 (Language.EO.Phi.Syntax.Abs.AttrSugar happy_var_2 happy_var_4
+	) `HappyStk` happyRest
+
+happyReduce_67 = happySpecReduce_0  37 happyReduction_67
+happyReduction_67  =  HappyAbsSyn37
+		 ([]
+	)
+
+happyReduce_68 = happySpecReduce_1  37 happyReduction_68
+happyReduction_68 (HappyAbsSyn20  happy_var_1)
+	 =  HappyAbsSyn37
+		 ((:[]) happy_var_1
+	)
+happyReduction_68 _  = notHappyAtAll 
+
+happyReduce_69 = happySpecReduce_3  37 happyReduction_69
+happyReduction_69 (HappyAbsSyn37  happy_var_3)
+	_
+	(HappyAbsSyn20  happy_var_1)
+	 =  HappyAbsSyn37
+		 ((:) happy_var_1 happy_var_3
+	)
+happyReduction_69 _ _ _  = notHappyAtAll 
+
+happyReduce_70 = happySpecReduce_1  38 happyReduction_70
+happyReduction_70 (HappyAbsSyn36  happy_var_1)
+	 =  HappyAbsSyn38
+		 (Language.EO.Phi.Syntax.Abs.ObjectAttr happy_var_1
+	)
+happyReduction_70 _  = notHappyAtAll 
+
+happyReduce_71 = happySpecReduce_1  38 happyReduction_71
+happyReduction_71 _
+	 =  HappyAbsSyn38
+		 (Language.EO.Phi.Syntax.Abs.DeltaAttr
+	)
+
+happyReduce_72 = happySpecReduce_1  38 happyReduction_72
+happyReduction_72 _
+	 =  HappyAbsSyn38
+		 (Language.EO.Phi.Syntax.Abs.LambdaAttr
+	)
+
+happyReduce_73 = happySpecReduce_2  39 happyReduction_73
+happyReduction_73 (HappyAbsSyn42  happy_var_2)
+	(HappyAbsSyn40  happy_var_1)
+	 =  HappyAbsSyn39
+		 (Language.EO.Phi.Syntax.Abs.PeeledObject happy_var_1 happy_var_2
+	)
+happyReduction_73 _ _  = notHappyAtAll 
+
+happyReduce_74 = happySpecReduce_3  40 happyReduction_74
+happyReduction_74 _
+	(HappyAbsSyn35  happy_var_2)
+	_
+	 =  HappyAbsSyn40
+		 (Language.EO.Phi.Syntax.Abs.HeadFormation happy_var_2
+	)
+happyReduction_74 _ _ _  = notHappyAtAll 
+
+happyReduce_75 = happySpecReduce_1  40 happyReduction_75
+happyReduction_75 _
+	 =  HappyAbsSyn40
+		 (Language.EO.Phi.Syntax.Abs.HeadGlobal
+	)
+
+happyReduce_76 = happySpecReduce_1  40 happyReduction_76
+happyReduction_76 _
+	 =  HappyAbsSyn40
+		 (Language.EO.Phi.Syntax.Abs.HeadThis
+	)
+
+happyReduce_77 = happySpecReduce_1  40 happyReduction_77
+happyReduction_77 _
+	 =  HappyAbsSyn40
+		 (Language.EO.Phi.Syntax.Abs.HeadTermination
+	)
+
+happyReduce_78 = happySpecReduce_3  41 happyReduction_78
+happyReduction_78 _
+	(HappyAbsSyn35  happy_var_2)
+	_
+	 =  HappyAbsSyn41
+		 (Language.EO.Phi.Syntax.Abs.ActionApplication happy_var_2
+	)
+happyReduction_78 _ _ _  = notHappyAtAll 
+
+happyReduce_79 = happySpecReduce_2  41 happyReduction_79
+happyReduction_79 (HappyAbsSyn36  happy_var_2)
+	_
+	 =  HappyAbsSyn41
+		 (Language.EO.Phi.Syntax.Abs.ActionDispatch happy_var_2
+	)
+happyReduction_79 _ _  = notHappyAtAll 
+
+happyReduce_80 = happySpecReduce_0  42 happyReduction_80
+happyReduction_80  =  HappyAbsSyn42
+		 ([]
+	)
+
+happyReduce_81 = happySpecReduce_2  42 happyReduction_81
+happyReduction_81 (HappyAbsSyn42  happy_var_2)
+	(HappyAbsSyn41  happy_var_1)
+	 =  HappyAbsSyn42
+		 ((:) happy_var_1 happy_var_2
+	)
+happyReduction_81 _ _  = notHappyAtAll 
+
+happyNewToken action sts stk [] =
+	action 84 84 notHappyAtAll (HappyState action) sts stk []
+
+happyNewToken action sts stk (tk:tks) =
+	let cont i = action i i tk (HappyState action) sts stk tks in
+	case tk of {
+	PT _ (TS _ 1) -> cont 43;
+	PT _ (TS _ 2) -> cont 44;
+	PT _ (TS _ 3) -> cont 45;
+	PT _ (TS _ 4) -> cont 46;
+	PT _ (TS _ 5) -> cont 47;
+	PT _ (TS _ 6) -> cont 48;
+	PT _ (TS _ 7) -> cont 49;
+	PT _ (TS _ 8) -> cont 50;
+	PT _ (TS _ 9) -> cont 51;
+	PT _ (TS _ 10) -> cont 52;
+	PT _ (TS _ 11) -> cont 53;
+	PT _ (TS _ 12) -> cont 54;
+	PT _ (TS _ 13) -> cont 55;
+	PT _ (TS _ 14) -> cont 56;
+	PT _ (TS _ 15) -> cont 57;
+	PT _ (TS _ 16) -> cont 58;
+	PT _ (TS _ 17) -> cont 59;
+	PT _ (TS _ 18) -> cont 60;
+	PT _ (TS _ 19) -> cont 61;
+	PT _ (TS _ 20) -> cont 62;
+	PT _ (TS _ 21) -> cont 63;
+	PT _ (TS _ 22) -> cont 64;
+	PT _ (TS _ 23) -> cont 65;
+	PT _ (TS _ 24) -> cont 66;
+	PT _ (TS _ 25) -> cont 67;
+	PT _ (TD happy_dollar_dollar) -> cont 68;
+	PT _ (TI happy_dollar_dollar) -> cont 69;
+	PT _ (TL happy_dollar_dollar) -> cont 70;
+	PT _ (T_Bytes happy_dollar_dollar) -> cont 71;
+	PT _ (T_Function happy_dollar_dollar) -> cont 72;
+	PT _ (T_LabelId happy_dollar_dollar) -> cont 73;
+	PT _ (T_AlphaIndex happy_dollar_dollar) -> cont 74;
+	PT _ (T_LabelMetaId happy_dollar_dollar) -> cont 75;
+	PT _ (T_TailMetaId happy_dollar_dollar) -> cont 76;
+	PT _ (T_BindingsMetaId happy_dollar_dollar) -> cont 77;
+	PT _ (T_ObjectMetaId happy_dollar_dollar) -> cont 78;
+	PT _ (T_BytesMetaId happy_dollar_dollar) -> cont 79;
+	PT _ (T_MetaFunctionName happy_dollar_dollar) -> cont 80;
+	PT _ (T_IntegerSigned happy_dollar_dollar) -> cont 81;
+	PT _ (T_DoubleSigned happy_dollar_dollar) -> cont 82;
+	PT _ (T_StringRaw happy_dollar_dollar) -> cont 83;
+	_ -> happyError' ((tk:tks), [])
+	}
+
+happyError_ explist 84 tk tks = happyError' (tks, explist)
+happyError_ explist _ tk tks = happyError' ((tk:tks), explist)
+
+happyThen :: () => Err a -> (a -> Err b) -> Err b
+happyThen = ((>>=))
+happyReturn :: () => a -> Err a
+happyReturn = (return)
+happyThen1 m k tks = ((>>=)) m (\a -> k a tks)
+happyReturn1 :: () => a -> b -> Err a
+happyReturn1 = \a tks -> (return) a
+happyError' :: () => ([(Token)], [Prelude.String]) -> Err a
+happyError' = (\(tokens, _) -> happyError tokens)
+pProgram tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_0 tks) (\x -> case x of {HappyAbsSyn31 z -> happyReturn z; _other -> notHappyAtAll })
+
+pMetaId tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_1 tks) (\x -> case x of {HappyAbsSyn32 z -> happyReturn z; _other -> notHappyAtAll })
+
+pObject tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_2 tks) (\x -> case x of {HappyAbsSyn33 z -> happyReturn z; _other -> notHappyAtAll })
+
+pBinding tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_3 tks) (\x -> case x of {HappyAbsSyn34 z -> happyReturn z; _other -> notHappyAtAll })
+
+pListBinding tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_4 tks) (\x -> case x of {HappyAbsSyn35 z -> happyReturn z; _other -> notHappyAtAll })
+
+pAttribute tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_5 tks) (\x -> case x of {HappyAbsSyn36 z -> happyReturn z; _other -> notHappyAtAll })
+
+pListLabelId tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_6 tks) (\x -> case x of {HappyAbsSyn37 z -> happyReturn z; _other -> notHappyAtAll })
+
+pRuleAttribute tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_7 tks) (\x -> case x of {HappyAbsSyn38 z -> happyReturn z; _other -> notHappyAtAll })
+
+pPeeledObject tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_8 tks) (\x -> case x of {HappyAbsSyn39 z -> happyReturn z; _other -> notHappyAtAll })
+
+pObjectHead tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_9 tks) (\x -> case x of {HappyAbsSyn40 z -> happyReturn z; _other -> notHappyAtAll })
+
+pObjectAction tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_10 tks) (\x -> case x of {HappyAbsSyn41 z -> happyReturn z; _other -> notHappyAtAll })
+
+pListObjectAction tks = happySomeParser where
+ happySomeParser = happyThen (happyParse action_11 tks) (\x -> case x of {HappyAbsSyn42 z -> happyReturn z; _other -> notHappyAtAll })
 
 happySeq = happyDontSeq
 
diff --git a/src/Language/EO/Phi/Syntax/Par.y b/src/Language/EO/Phi/Syntax/Par.y
--- a/src/Language/EO/Phi/Syntax/Par.y
+++ b/src/Language/EO/Phi/Syntax/Par.y
@@ -14,6 +14,7 @@
   , pBinding
   , pListBinding
   , pAttribute
+  , pListLabelId
   , pRuleAttribute
   , pPeeledObject
   , pObjectHead
@@ -34,6 +35,7 @@
 %name pBinding Binding
 %name pListBinding ListBinding
 %name pAttribute Attribute
+%name pListLabelId ListLabelId
 %name pRuleAttribute RuleAttribute
 %name pPeeledObject PeeledObject
 %name pObjectHead ObjectHead
@@ -52,20 +54,22 @@
   ']'                { PT _ (TS _ 7)                }
   '{'                { PT _ (TS _ 8)                }
   '}'                { PT _ (TS _ 9)                }
-  'Δ'                { PT _ (TS _ 10)               }
-  'Φ'                { PT _ (TS _ 11)               }
-  'λ'                { PT _ (TS _ 12)               }
-  'ξ'                { PT _ (TS _ 13)               }
-  'ρ'                { PT _ (TS _ 14)               }
-  'φ'                { PT _ (TS _ 15)               }
-  '↦'                { PT _ (TS _ 16)               }
-  '∅'                { PT _ (TS _ 17)               }
-  '⊥'                { PT _ (TS _ 18)               }
-  '⌈'                { PT _ (TS _ 19)               }
-  '⌉'                { PT _ (TS _ 20)               }
-  '⟦'                { PT _ (TS _ 21)               }
-  '⟧'                { PT _ (TS _ 22)               }
-  '⤍'                { PT _ (TS _ 23)               }
+  '~'                { PT _ (TS _ 10)               }
+  'Δ'                { PT _ (TS _ 11)               }
+  'Φ'                { PT _ (TS _ 12)               }
+  'Φ̇'               { PT _ (TS _ 13)               }
+  'λ'                { PT _ (TS _ 14)               }
+  'ξ'                { PT _ (TS _ 15)               }
+  'ρ'                { PT _ (TS _ 16)               }
+  'φ'                { PT _ (TS _ 17)               }
+  '↦'                { PT _ (TS _ 18)               }
+  '∅'                { PT _ (TS _ 19)               }
+  '⊥'                { PT _ (TS _ 20)               }
+  '⌈'                { PT _ (TS _ 21)               }
+  '⌉'                { PT _ (TS _ 22)               }
+  '⟦'                { PT _ (TS _ 23)               }
+  '⟧'                { PT _ (TS _ 24)               }
+  '⤍'                { PT _ (TS _ 25)               }
   L_doubl            { PT _ (TD $$)                 }
   L_integ            { PT _ (TI $$)                 }
   L_quoted           { PT _ (TL $$)                 }
@@ -79,6 +83,9 @@
   L_ObjectMetaId     { PT _ (T_ObjectMetaId $$)     }
   L_BytesMetaId      { PT _ (T_BytesMetaId $$)      }
   L_MetaFunctionName { PT _ (T_MetaFunctionName $$) }
+  L_IntegerSigned    { PT _ (T_IntegerSigned $$)    }
+  L_DoubleSigned     { PT _ (T_DoubleSigned $$)     }
+  L_StringRaw        { PT _ (T_StringRaw $$)        }
 
 %%
 
@@ -121,6 +128,15 @@
 MetaFunctionName :: { Language.EO.Phi.Syntax.Abs.MetaFunctionName }
 MetaFunctionName  : L_MetaFunctionName { Language.EO.Phi.Syntax.Abs.MetaFunctionName $1 }
 
+IntegerSigned :: { Language.EO.Phi.Syntax.Abs.IntegerSigned }
+IntegerSigned  : L_IntegerSigned { Language.EO.Phi.Syntax.Abs.IntegerSigned $1 }
+
+DoubleSigned :: { Language.EO.Phi.Syntax.Abs.DoubleSigned }
+DoubleSigned  : L_DoubleSigned { Language.EO.Phi.Syntax.Abs.DoubleSigned $1 }
+
+StringRaw :: { Language.EO.Phi.Syntax.Abs.StringRaw }
+StringRaw  : L_StringRaw { Language.EO.Phi.Syntax.Abs.StringRaw $1 }
+
 Program :: { Language.EO.Phi.Syntax.Abs.Program }
 Program
   : '{' '⟦' ListBinding '⟧' '}' { Language.EO.Phi.Syntax.Abs.Program $3 }
@@ -139,11 +155,12 @@
   | Object '(' ListBinding ')' { Language.EO.Phi.Syntax.Abs.Application $1 $3 }
   | Object '.' Attribute { Language.EO.Phi.Syntax.Abs.ObjectDispatch $1 $3 }
   | 'Φ' { Language.EO.Phi.Syntax.Abs.GlobalObject }
+  | 'Φ̇' { Language.EO.Phi.Syntax.Abs.GlobalObjectPhiOrg }
   | 'ξ' { Language.EO.Phi.Syntax.Abs.ThisObject }
   | '⊥' { Language.EO.Phi.Syntax.Abs.Termination }
-  | String { Language.EO.Phi.Syntax.Abs.ConstString $1 }
-  | Integer { Language.EO.Phi.Syntax.Abs.ConstInt $1 }
-  | Double { Language.EO.Phi.Syntax.Abs.ConstFloat $1 }
+  | StringRaw { Language.EO.Phi.Syntax.Abs.ConstStringRaw $1 }
+  | IntegerSigned { Language.EO.Phi.Syntax.Abs.ConstIntRaw $1 }
+  | DoubleSigned { Language.EO.Phi.Syntax.Abs.ConstFloatRaw $1 }
   | Object '[' 'ξ' '↦' Object ']' { Language.EO.Phi.Syntax.Abs.MetaSubstThis $1 $5 }
   | '⌈' Object ',' Object '⌉' { Language.EO.Phi.Syntax.Abs.MetaContextualize $2 $4 }
   | ObjectMetaId { Language.EO.Phi.Syntax.Abs.MetaObject $1 }
@@ -153,6 +170,7 @@
 Binding :: { Language.EO.Phi.Syntax.Abs.Binding }
 Binding
   : Attribute '↦' Object { Language.EO.Phi.Syntax.Abs.AlphaBinding $1 $3 }
+  | Object { Language.EO.Phi.Syntax.Abs.AlphaBindingSugar $1 }
   | Attribute '↦' '∅' { Language.EO.Phi.Syntax.Abs.EmptyBinding $1 }
   | 'Δ' '⤍' Bytes { Language.EO.Phi.Syntax.Abs.DeltaBinding $3 }
   | 'Δ' '⤍' '∅' { Language.EO.Phi.Syntax.Abs.DeltaEmptyBinding }
@@ -169,10 +187,18 @@
 Attribute :: { Language.EO.Phi.Syntax.Abs.Attribute }
 Attribute
   : 'φ' { Language.EO.Phi.Syntax.Abs.Phi }
+  | '~' 'φ' '(' ListLabelId ')' { Language.EO.Phi.Syntax.Abs.PhiSugar $4 }
   | 'ρ' { Language.EO.Phi.Syntax.Abs.Rho }
   | LabelId { Language.EO.Phi.Syntax.Abs.Label $1 }
   | AlphaIndex { Language.EO.Phi.Syntax.Abs.Alpha $1 }
   | LabelMetaId { Language.EO.Phi.Syntax.Abs.MetaAttr $1 }
+  | '~' LabelId '(' ListLabelId ')' { Language.EO.Phi.Syntax.Abs.AttrSugar $2 $4 }
+
+ListLabelId :: { [Language.EO.Phi.Syntax.Abs.LabelId] }
+ListLabelId
+  : {- empty -} { [] }
+  | LabelId { (:[]) $1 }
+  | LabelId ',' ListLabelId { (:) $1 $3 }
 
 RuleAttribute :: { Language.EO.Phi.Syntax.Abs.RuleAttribute }
 RuleAttribute
diff --git a/src/Language/EO/Phi/Syntax/Print.hs b/src/Language/EO/Phi/Syntax/Print.hs
deleted file mode 100644
--- a/src/Language/EO/Phi/Syntax/Print.hs
+++ /dev/null
@@ -1,269 +0,0 @@
-{-
-Copyright EO/Polystat Development Team (c) 2023
-
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-
-    * Redistributions in binary form must reproduce the above
-      copyright notice, this list of conditions and the following
-      disclaimer in the documentation and/or other materials provided
-      with the distribution.
-
-    * Neither the name of EO/Polystat Development Team nor the names of other
-      contributors may be used to endorse or promote products derived
-      from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--}
-
--- File generated by the BNF Converter (bnfc 2.9.5).
-
-{-# LANGUAGE CPP #-}
-{-# LANGUAGE FlexibleInstances #-}
-{-# LANGUAGE LambdaCase #-}
-#if __GLASGOW_HASKELL__ <= 708
-{-# LANGUAGE OverlappingInstances #-}
-#endif
-
--- | Pretty-printer for Language.
-
-module Language.EO.Phi.Syntax.Print where
-
-import Prelude
-  ( ($), (.)
-  , Bool(..), (==), (<)
-  , Int, Integer, Double, (+), (-), (*)
-  , String, (++)
-  , ShowS, showChar, showString
-  , all, elem, foldr, id, map, null, replicate, shows, span
-  )
-import Data.Char ( Char, isSpace )
-import qualified Language.EO.Phi.Syntax.Abs
-
--- | The top-level printing method.
-
-printTree :: Print a => a -> String
-printTree = render . prt 0
-
-type Doc = [ShowS] -> [ShowS]
-
-doc :: ShowS -> Doc
-doc = (:)
-
-render :: Doc -> String
-render d = rend 0 False (map ($ "") $ d []) ""
-  where
-  rend
-    :: Int        -- ^ Indentation level.
-    -> Bool       -- ^ Pending indentation to be output before next character?
-    -> [String]
-    -> ShowS
-  rend i p = \case
-      "["      :ts -> char '[' . rend i False ts
-      "("      :ts -> char '(' . rend i False ts
-      "{"      :ts -> onNewLine i     p . showChar   '{'  . new (i+1) ts
-      "}" : ";":ts -> onNewLine (i-1) p . showString "};" . new (i-1) ts
-      "}"      :ts -> onNewLine (i-1) p . showChar   '}'  . new (i-1) ts
-      [";"]        -> char ';'
-      ";"      :ts -> char ';' . new i ts
-      t  : ts@(s:_) | closingOrPunctuation s
-                   -> pending . showString t . rend i False ts
-      t        :ts -> pending . space t      . rend i False ts
-      []           -> id
-    where
-    -- Output character after pending indentation.
-    char :: Char -> ShowS
-    char c = pending . showChar c
-
-    -- Output pending indentation.
-    pending :: ShowS
-    pending = if p then indent i else id
-
-  -- Indentation (spaces) for given indentation level.
-  indent :: Int -> ShowS
-  indent i = replicateS (2*i) (showChar ' ')
-
-  -- Continue rendering in new line with new indentation.
-  new :: Int -> [String] -> ShowS
-  new j ts = showChar '\n' . rend j True ts
-
-  -- Make sure we are on a fresh line.
-  onNewLine :: Int -> Bool -> ShowS
-  onNewLine i p = (if p then id else showChar '\n') . indent i
-
-  -- Separate given string from following text by a space (if needed).
-  space :: String -> ShowS
-  space t s =
-    case (all isSpace t, null spc, null rest) of
-      (True , _   , True ) -> []             -- remove trailing space
-      (False, _   , True ) -> t              -- remove trailing space
-      (False, True, False) -> t ++ ' ' : s   -- add space if none
-      _                    -> t ++ s
-    where
-      (spc, rest) = span isSpace s
-
-  closingOrPunctuation :: String -> Bool
-  closingOrPunctuation [c] = c `elem` closerOrPunct
-  closingOrPunctuation _   = False
-
-  closerOrPunct :: String
-  closerOrPunct = ")],;"
-
-parenth :: Doc -> Doc
-parenth ss = doc (showChar '(') . ss . doc (showChar ')')
-
-concatS :: [ShowS] -> ShowS
-concatS = foldr (.) id
-
-concatD :: [Doc] -> Doc
-concatD = foldr (.) id
-
-replicateS :: Int -> ShowS -> ShowS
-replicateS n f = concatS (replicate n f)
-
--- | The printer class does the job.
-
-class Print a where
-  prt :: Int -> a -> Doc
-
-instance {-# OVERLAPPABLE #-} Print a => Print [a] where
-  prt i = concatD . map (prt i)
-
-instance Print Char where
-  prt _ c = doc (showChar '\'' . mkEsc '\'' c . showChar '\'')
-
-instance Print String where
-  prt _ = printString
-
-printString :: String -> Doc
-printString s = doc (showChar '"' . concatS (map (mkEsc '"') s) . showChar '"')
-
-mkEsc :: Char -> Char -> ShowS
-mkEsc q = \case
-  s | s == q -> showChar '\\' . showChar s
-  '\\' -> showString "\\\\"
-  '\n' -> showString "\\n"
-  '\t' -> showString "\\t"
-  s -> showChar s
-
-prPrec :: Int -> Int -> Doc -> Doc
-prPrec i j = if j < i then parenth else id
-
-instance Print Integer where
-  prt _ x = doc (shows x)
-
-instance Print Double where
-  prt _ x = doc (shows x)
-
-instance Print Language.EO.Phi.Syntax.Abs.Bytes where
-  prt _ (Language.EO.Phi.Syntax.Abs.Bytes i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.Function where
-  prt _ (Language.EO.Phi.Syntax.Abs.Function i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.LabelId where
-  prt _ (Language.EO.Phi.Syntax.Abs.LabelId i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.AlphaIndex where
-  prt _ (Language.EO.Phi.Syntax.Abs.AlphaIndex i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.LabelMetaId where
-  prt _ (Language.EO.Phi.Syntax.Abs.LabelMetaId i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.TailMetaId where
-  prt _ (Language.EO.Phi.Syntax.Abs.TailMetaId i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.BindingsMetaId where
-  prt _ (Language.EO.Phi.Syntax.Abs.BindingsMetaId i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.ObjectMetaId where
-  prt _ (Language.EO.Phi.Syntax.Abs.ObjectMetaId i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.BytesMetaId where
-  prt _ (Language.EO.Phi.Syntax.Abs.BytesMetaId i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.MetaFunctionName where
-  prt _ (Language.EO.Phi.Syntax.Abs.MetaFunctionName i) = doc $ showString i
-instance Print Language.EO.Phi.Syntax.Abs.Program where
-  prt i = \case
-    Language.EO.Phi.Syntax.Abs.Program bindings -> prPrec i 0 (concatD [doc (showString "{"), doc (showString "\10214"), prt 0 bindings, doc (showString "\10215"), doc (showString "}")])
-
-instance Print Language.EO.Phi.Syntax.Abs.MetaId where
-  prt i = \case
-    Language.EO.Phi.Syntax.Abs.MetaIdLabel labelmetaid -> prPrec i 0 (concatD [prt 0 labelmetaid])
-    Language.EO.Phi.Syntax.Abs.MetaIdTail tailmetaid -> prPrec i 0 (concatD [prt 0 tailmetaid])
-    Language.EO.Phi.Syntax.Abs.MetaIdBindings bindingsmetaid -> prPrec i 0 (concatD [prt 0 bindingsmetaid])
-    Language.EO.Phi.Syntax.Abs.MetaIdObject objectmetaid -> prPrec i 0 (concatD [prt 0 objectmetaid])
-    Language.EO.Phi.Syntax.Abs.MetaIdBytes bytesmetaid -> prPrec i 0 (concatD [prt 0 bytesmetaid])
-
-instance Print Language.EO.Phi.Syntax.Abs.Object where
-  prt i = \case
-    Language.EO.Phi.Syntax.Abs.Formation bindings -> prPrec i 0 (concatD [doc (showString "\10214"), prt 0 bindings, doc (showString "\10215")])
-    Language.EO.Phi.Syntax.Abs.Application object bindings -> prPrec i 0 (concatD [prt 0 object, doc (showString "("), prt 0 bindings, doc (showString ")")])
-    Language.EO.Phi.Syntax.Abs.ObjectDispatch object attribute -> prPrec i 0 (concatD [prt 0 object, doc (showString "."), prt 0 attribute])
-    Language.EO.Phi.Syntax.Abs.GlobalObject -> prPrec i 0 (concatD [doc (showString "\934")])
-    Language.EO.Phi.Syntax.Abs.ThisObject -> prPrec i 0 (concatD [doc (showString "\958")])
-    Language.EO.Phi.Syntax.Abs.Termination -> prPrec i 0 (concatD [doc (showString "\8869")])
-    Language.EO.Phi.Syntax.Abs.ConstString str -> prPrec i 0 (concatD [printString str])
-    Language.EO.Phi.Syntax.Abs.ConstInt n -> prPrec i 0 (concatD [prt 0 n])
-    Language.EO.Phi.Syntax.Abs.ConstFloat d -> prPrec i 0 (concatD [prt 0 d])
-    Language.EO.Phi.Syntax.Abs.MetaSubstThis object1 object2 -> prPrec i 0 (concatD [prt 0 object1, doc (showString "["), doc (showString "\958"), doc (showString "\8614"), prt 0 object2, doc (showString "]")])
-    Language.EO.Phi.Syntax.Abs.MetaContextualize object1 object2 -> prPrec i 0 (concatD [doc (showString "\8968"), prt 0 object1, doc (showString ","), prt 0 object2, doc (showString "\8969")])
-    Language.EO.Phi.Syntax.Abs.MetaObject objectmetaid -> prPrec i 0 (concatD [prt 0 objectmetaid])
-    Language.EO.Phi.Syntax.Abs.MetaTailContext object tailmetaid -> prPrec i 0 (concatD [prt 0 object, doc (showString "*"), prt 0 tailmetaid])
-    Language.EO.Phi.Syntax.Abs.MetaFunction metafunctionname object -> prPrec i 0 (concatD [prt 0 metafunctionname, doc (showString "("), prt 0 object, doc (showString ")")])
-
-instance Print Language.EO.Phi.Syntax.Abs.Binding where
-  prt i = \case
-    Language.EO.Phi.Syntax.Abs.AlphaBinding attribute object -> prPrec i 0 (concatD [prt 0 attribute, doc (showString "\8614"), prt 0 object])
-    Language.EO.Phi.Syntax.Abs.EmptyBinding attribute -> prPrec i 0 (concatD [prt 0 attribute, doc (showString "\8614"), doc (showString "\8709")])
-    Language.EO.Phi.Syntax.Abs.DeltaBinding bytes -> prPrec i 0 (concatD [doc (showString "\916"), doc (showString "\10509"), prt 0 bytes])
-    Language.EO.Phi.Syntax.Abs.DeltaEmptyBinding -> prPrec i 0 (concatD [doc (showString "\916"), doc (showString "\10509"), doc (showString "\8709")])
-    Language.EO.Phi.Syntax.Abs.LambdaBinding function -> prPrec i 0 (concatD [doc (showString "\955"), doc (showString "\10509"), prt 0 function])
-    Language.EO.Phi.Syntax.Abs.MetaBindings bindingsmetaid -> prPrec i 0 (concatD [prt 0 bindingsmetaid])
-    Language.EO.Phi.Syntax.Abs.MetaDeltaBinding bytesmetaid -> prPrec i 0 (concatD [doc (showString "\916"), doc (showString "\10509"), prt 0 bytesmetaid])
-
-instance Print [Language.EO.Phi.Syntax.Abs.Binding] where
-  prt _ [] = concatD []
-  prt _ [x] = concatD [prt 0 x]
-  prt _ (x:xs) = concatD [prt 0 x, doc (showString ","), prt 0 xs]
-
-instance Print Language.EO.Phi.Syntax.Abs.Attribute where
-  prt i = \case
-    Language.EO.Phi.Syntax.Abs.Phi -> prPrec i 0 (concatD [doc (showString "\966")])
-    Language.EO.Phi.Syntax.Abs.Rho -> prPrec i 0 (concatD [doc (showString "\961")])
-    Language.EO.Phi.Syntax.Abs.Label labelid -> prPrec i 0 (concatD [prt 0 labelid])
-    Language.EO.Phi.Syntax.Abs.Alpha alphaindex -> prPrec i 0 (concatD [prt 0 alphaindex])
-    Language.EO.Phi.Syntax.Abs.MetaAttr labelmetaid -> prPrec i 0 (concatD [prt 0 labelmetaid])
-
-instance Print Language.EO.Phi.Syntax.Abs.RuleAttribute where
-  prt i = \case
-    Language.EO.Phi.Syntax.Abs.ObjectAttr attribute -> prPrec i 0 (concatD [prt 0 attribute])
-    Language.EO.Phi.Syntax.Abs.DeltaAttr -> prPrec i 0 (concatD [doc (showString "\916")])
-    Language.EO.Phi.Syntax.Abs.LambdaAttr -> prPrec i 0 (concatD [doc (showString "\955")])
-
-instance Print Language.EO.Phi.Syntax.Abs.PeeledObject where
-  prt i = \case
-    Language.EO.Phi.Syntax.Abs.PeeledObject objecthead objectactions -> prPrec i 0 (concatD [prt 0 objecthead, prt 0 objectactions])
-
-instance Print Language.EO.Phi.Syntax.Abs.ObjectHead where
-  prt i = \case
-    Language.EO.Phi.Syntax.Abs.HeadFormation bindings -> prPrec i 0 (concatD [doc (showString "\10214"), prt 0 bindings, doc (showString "\10215")])
-    Language.EO.Phi.Syntax.Abs.HeadGlobal -> prPrec i 0 (concatD [doc (showString "\934")])
-    Language.EO.Phi.Syntax.Abs.HeadThis -> prPrec i 0 (concatD [doc (showString "\958")])
-    Language.EO.Phi.Syntax.Abs.HeadTermination -> prPrec i 0 (concatD [doc (showString "\8869")])
-
-instance Print Language.EO.Phi.Syntax.Abs.ObjectAction where
-  prt i = \case
-    Language.EO.Phi.Syntax.Abs.ActionApplication bindings -> prPrec i 0 (concatD [doc (showString "("), prt 0 bindings, doc (showString ")")])
-    Language.EO.Phi.Syntax.Abs.ActionDispatch attribute -> prPrec i 0 (concatD [doc (showString "."), prt 0 attribute])
-
-instance Print [Language.EO.Phi.Syntax.Abs.ObjectAction] where
-  prt _ [] = concatD []
-  prt _ (x:xs) = concatD [prt 0 x, prt 0 xs]
diff --git a/src/Language/EO/Phi/ToLaTeX.hs b/src/Language/EO/Phi/ToLaTeX.hs
--- a/src/Language/EO/Phi/ToLaTeX.hs
+++ b/src/Language/EO/Phi/ToLaTeX.hs
@@ -24,17 +24,20 @@
 {-# LANGUAGE DerivingStrategies #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE QuasiQuotes #-}
 {-# LANGUAGE RecordWildCards #-}
 
 module Language.EO.Phi.ToLaTeX where
 
 import Data.Foldable (fold)
-import Data.List (intersperse)
+import Data.List (intercalate, intersperse)
 import Data.String (IsString)
 import Data.Text qualified as T
 import Language.EO.Phi
 import Language.EO.Phi.Rules.Yaml
+import PyF (fmt)
 import Text.Regex (mkRegex, subRegex)
 
 newtype LaTeX = LaTeX {unLaTeX :: String}
@@ -53,11 +56,16 @@
     "\\Big\\{ " <> toLatex (Formation bindings) <> " \\Big\\}"
 
 instance ToLatex Attribute where
-  toLatex Phi = "@"
-  toLatex Rho = "^"
-  toLatex (Alpha (AlphaIndex a)) = LaTeX ("\\alpha_" ++ tail a)
-  toLatex (Label (LabelId l)) = LaTeX l
-  toLatex (MetaAttr (LabelMetaId l)) = LaTeX l
+  toLatex = \case
+    Phi -> "@"
+    Rho -> "^"
+    (Alpha (AlphaIndex a)) -> LaTeX ("\\alpha_" ++ tail a)
+    (Label (LabelId l)) -> LaTeX l
+    (MetaAttr (LabelMetaId l)) -> LaTeX l
+    (AttrSugar (LabelId l) ls) -> LaTeX [fmt|{l}({mkLabels ls})|]
+    (PhiSugar ls) -> LaTeX [fmt|@({mkLabels ls})|]
+   where
+    mkLabels ls = intercalate ", " ((\(LabelId l') -> l') <$> ls)
 
 instance ToLatex Binding where
   toLatex (AlphaBinding attr obj) = toLatex attr <> " -> " <> toLatex obj
@@ -67,6 +75,7 @@
   toLatex (LambdaBinding (Function fn)) = "L> " <> LaTeX fn
   toLatex (MetaBindings (BindingsMetaId x)) = LaTeX x
   toLatex (MetaDeltaBinding (BytesMetaId x)) = "D> " <> LaTeX x
+  toLatex b@AlphaBindingSugar{} = errorExpectedDesugaredBinding b
 
 instance ToLatex Object where
   toLatex (Formation bindings) =
@@ -76,6 +85,7 @@
   toLatex (ObjectDispatch obj attr) =
     toLatex obj <> "." <> toLatex attr
   toLatex GlobalObject = "Q"
+  toLatex GlobalObjectPhiOrg = "QQ"
   toLatex ThisObject = "\\xi"
   toLatex Termination = "\\dead"
   toLatex (MetaObject (ObjectMetaId metaId)) = LaTeX metaId
@@ -84,8 +94,11 @@
   toLatex (MetaSubstThis obj1 obj2) = LaTeX "\\mathbb{S}(" <> toLatex obj1 <> ", " <> toLatex obj2 <> ")"
   toLatex (MetaContextualize obj1 obj2) = LaTeX "\\lceil" <> toLatex obj1 <> ", " <> toLatex obj2 <> "\\rceil"
   toLatex (ConstString string) = "|" <> LaTeX (show string) <> "|"
+  toLatex obj@(ConstStringRaw{}) = errorExpectedDesugaredObject obj
   toLatex (ConstInt n) = LaTeX (show n)
+  toLatex obj@(ConstIntRaw{}) = errorExpectedDesugaredObject obj
   toLatex (ConstFloat x) = LaTeX (show x)
+  toLatex obj@(ConstFloatRaw{}) = errorExpectedDesugaredObject obj
 
 removeOrgEolang :: String -> String
 removeOrgEolang = T.unpack . T.replace "Q.org.eolang" "QQ" . T.pack
diff --git a/test/Language/EO/Phi/DataizeSpec.hs b/test/Language/EO/Phi/DataizeSpec.hs
--- a/test/Language/EO/Phi/DataizeSpec.hs
+++ b/test/Language/EO/Phi/DataizeSpec.hs
@@ -21,6 +21,7 @@
 -- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 -- SOFTWARE.
 {- FOURMOLU_ENABLE -}
+{-# LANGUAGE BlockArguments #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE OverloadedRecordDot #-}
 {-# LANGUAGE RecordWildCards #-}
@@ -62,23 +63,30 @@
 spec :: Spec
 spec = do
   DataizeTestGroup{..} <- runIO (dataizationTests "test/eo/phi/dataization.yaml")
-  ruleset <- runIO $ parseRuleSetFromFile "test/eo/phi/rules/yegor.yaml"
-  let rules = map convertRuleNamed ruleset.rules
-  describe title $
-    forM_ tests $
-      \test -> do
-        deps <- runIO $ mapM getProgram test.dependencies
-        let mergedProgs = case deepMergePrograms (test.input : deps) of
-              Left err -> error ("Error merging programs: " ++ err)
-              Right prog -> prog
-        let ctx = defaultContext rules (progToObj mergedProgs)
-        let inputObj = progToObj test.input
-        let expectedResult = case test.output of
-              Object obj -> Left obj
-              Bytes bytes -> Right bytes
-        it test.name $ do
-          let dataizedResult = dataizeRecursively ctx inputObj
-          ObjectOrBytes dataizedResult `shouldBe` ObjectOrBytes expectedResult
+  describe title do
+    forM_
+      [ ("Old Yegor's rules", "test/eo/phi/rules/yegor.yaml")
+      -- TODO #617:10m Enable
+      -- , ("New Yegor's rules", "test/eo/phi/rules/new.yaml")
+      ]
+      $ \(rulesTitle, rulesFile) -> do
+        ruleset <- runIO $ parseRuleSetFromFile rulesFile
+        let rules = map convertRuleNamed ruleset.rules
+        describe rulesTitle do
+          forM_ tests $
+            \test -> do
+              deps <- runIO $ mapM getProgram test.dependencies
+              let mergedProgs = case deepMergePrograms (test.input : deps) of
+                    Left err -> error ("Error merging programs: " ++ err)
+                    Right prog -> prog
+              let ctx = defaultContext rules (progToObj mergedProgs)
+              let inputObj = progToObj test.input
+              let expectedResult = case test.output of
+                    Object obj -> Left obj
+                    Bytes bytes -> Right bytes
+              it test.name $ do
+                let dataizedResult = dataizeRecursively ctx inputObj
+                ObjectOrBytes dataizedResult `shouldBe` ObjectOrBytes expectedResult
 
 progToObj :: Phi.Program -> Phi.Object
 progToObj (Phi.Program bindings) = Phi.Formation bindings
diff --git a/test/Language/EO/Rules/PhiPaperSpec.hs b/test/Language/EO/Rules/PhiPaperSpec.hs
--- a/test/Language/EO/Rules/PhiPaperSpec.hs
+++ b/test/Language/EO/Rules/PhiPaperSpec.hs
@@ -48,10 +48,11 @@
 import Language.EO.Phi.Dataize.Context (defaultContext)
 import Language.EO.Phi.Rules.Common (ApplicationLimits (..), NamedRule, applyOneRule, defaultApplicationLimits, equalObject, objectSize)
 import Language.EO.Phi.Rules.Yaml (convertRuleNamed, parseRuleSetFromFile, rules)
-import Language.EO.Phi.Syntax (intToBytes, printTree)
+import Language.EO.Phi.Syntax (errorExpectedDesugaredBinding, intToBytes, printTree)
 import Language.EO.Phi.Syntax.Abs as Phi
 import Test.Hspec
 import Test.QuickCheck
+import Test.QuickCheck.Gen (genDouble)
 
 arbitraryNonEmptyString :: Gen String
 arbitraryNonEmptyString = do
@@ -75,6 +76,10 @@
   arbitrary = intToBytes <$> arbitrarySizedNatural
 instance Arbitrary Phi.Function where
   arbitrary = Phi.Function <$> arbitraryNonEmptyString
+instance Arbitrary DoubleSigned where
+  arbitrary = DoubleSigned . show . (1000 *) <$> genDouble
+instance Arbitrary IntegerSigned where
+  arbitrary = IntegerSigned . show <$> chooseInteger (-1_000_000, 1_000_000)
 
 instance Arbitrary Phi.ObjectMetaId where
   arbitrary = Phi.ObjectMetaId . ("!b" ++) <$> arbitraryNonEmptyString
@@ -107,6 +112,9 @@
   shrink (AlphaBinding attr obj) = AlphaBinding attr <$> shrink obj
   shrink _ = [] -- do not shrink deltas and lambdas
 
+instance Arbitrary Phi.StringRaw where
+  arbitrary = Phi.StringRaw <$> arbitraryNonEmptyString
+
 -- | Split an integer into a list of positive integers,
 -- whose sum is less than or equal the initial one.
 --
@@ -142,6 +150,7 @@
   LambdaBinding{} -> Label "λ"
   MetaDeltaBinding{} -> Label "Δ"
   MetaBindings{} -> error "attempting to retrieve attribute of meta bindings"
+  b@AlphaBindingSugar{} -> errorExpectedDesugaredBinding b
 
 arbitraryBindings :: Gen [Binding]
 arbitraryBindings =
@@ -330,14 +339,14 @@
 spec :: Spec
 spec =
   forM_
-    [ ("Old Yegor's rules", "test/eo/phi/rules/yegor.yaml")
-    , ("New Yegor's rules", "test/eo/phi/rules/new.yaml")
+    [ ("New Yegor's rules", "test/eo/phi/rules/new.yaml")
+    , ("Old Yegor's rules", "test/eo/phi/rules/yegor.yaml")
     ]
-    $ \(name, rulesFile) -> do
+    $ \(title, rulesFile) -> do
       ruleset <- runIO $ parseRuleSetFromFile rulesFile
       let rulesFromYaml = map convertRuleNamed (rules ruleset)
       inputs <- runIO $ parseTests "test/eo/phi/confluence.yaml"
-      describe name $ do
+      describe title $ do
         it "Are confluent (via QuickCheck)" (confluent rulesFromYaml)
         describe
           "Are confluent (regression tests)"
diff --git a/test/Language/EO/YamlSpec.hs b/test/Language/EO/YamlSpec.hs
--- a/test/Language/EO/YamlSpec.hs
+++ b/test/Language/EO/YamlSpec.hs
@@ -31,7 +31,7 @@
 spec :: Spec
 spec =
   Test.spec
-    [ "test/eo/phi/rules/yegor.yaml"
-    , "test/eo/phi/rules/new.yaml"
+    [ "test/eo/phi/rules/new.yaml"
+    , "test/eo/phi/rules/yegor.yaml"
     , "test/eo/phi/rules/streams.yaml"
     ]
diff --git a/test/eo/phi/rules/new.yaml b/test/eo/phi/rules/new.yaml
--- a/test/eo/phi/rules/new.yaml
+++ b/test/eo/phi/rules/new.yaml
@@ -31,7 +31,8 @@
       ⌈ !b , ⟦ !τ ↦ !b, !B ⟧ ⌉(ρ ↦ ⟦ !τ ↦ !b, !B ⟧)
     when:
       - nf: '!b'
-      - nf: '⟦ !B ⟧' #TODO: change the condition, every object in !B should be in the nf
+      # TODO #636:30min Change the condition, every object in !B should be in the nf
+      - nf: '⟦ !B ⟧'
     tests:
       - name: 'Contextualization changes ξ'
         input: ⟦ a ↦ ξ ⟧.a
@@ -80,7 +81,6 @@
         output: ['⟦ a ↦ ⟦ b ↦ ⟦ a ↦ ⟦ b ↦ ∅ ⟧ (b ↦ ξ) ⟧ ⟧ ().a ⟧']
       - name: Phi Paper - Example E1
         input: ⟦ k ↦ ⟦ x ↦ ξ.t, t ↦ ∅ ⟧(t ↦ ⟦ρ ↦ ⟦⟧⟧) ⟧
-        # output: ['⟦ k ↦ ⟦ x ↦ ξ.t, t ↦ ⟦ρ ↦ ⟦⟧⟧ ⟧() ⟧']
         output: ['⟦ k ↦ ⟦ t ↦ ⟦ρ ↦ ⟦⟧⟧, x ↦ ξ.t ⟧() ⟧']
       - name: Phi Paper - Example E4 - dispatch on y
         input: ⟦ k ↦ ⟦ x ↦ ∅, y ↦ ξ.x ⟧(x ↦ ⟦ρ ↦ ⟦⟧⟧).y ⟧
@@ -124,7 +124,7 @@
         input: ⟦ m ↦ ⟦ x ↦ ξ.t, φ ↦ ⟦ t ↦ ⟦⟧ ⟧ ⟧.t(ρ ↦ ⟦ x ↦ ξ.t, φ ↦ ⟦ t ↦ ⟦⟧ ⟧ ⟧) ⟧
         output: ['⟦ m ↦ ⟦ x ↦ ξ.t, φ ↦ ⟦ t ↦ ⟦⟧ ⟧ ⟧.φ.t(ρ ↦ ⟦ x ↦ ξ.t, φ ↦ ⟦ t ↦ ⟦⟧ ⟧ ⟧) ⟧']
 
-  # there's no B2 in the result
+  # TODO #636:30min There's no B2 in the result
   - name: STAY
     description: 'Application of a ρ-binding when ρ already exists'
     pattern: |
