diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -90,3 +90,11 @@
 * Fifth version revised D. Updated the dependency boundaries so that to include the fixes for them.
 Some documentation update. This is an intermediate release mostly for testing. 
 
+## 0.5.3.0 -- 2023-06-01
+
+* Fifth version revised E. Fixed issue with incorrect work with spaces inside the +b ... -b
+  algebraic constraints arguments. The parentheses usage inside the +b ... -b is still not working
+-- it is a known issue to be fixed in the further releeases. It is alse an intermediate release 
+for testing.
+
+
diff --git a/app/Main.hs b/app/Main.hs
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -83,7 +83,7 @@
       helpMessage = oneA "-h" argsA
       argCs = catMaybes (fmap (readMaybeECG l) -- . (showB l lstW2:)
                                                     . getC "+a" $ argsC)
-      argCBs = concat . getC "+b" $ argsC
+      argCBs = unwords . getC "+b" $ argsC
       ll = take 7 . (if prepare then id else words . mconcat . prepareText . unwords) $ arg2s
       l = length ll
       !perms 
diff --git a/phladiprelio-ukrainian-simple.cabal b/phladiprelio-ukrainian-simple.cabal
--- a/phladiprelio-ukrainian-simple.cabal
+++ b/phladiprelio-ukrainian-simple.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               phladiprelio-ukrainian-simple
-version:            0.5.2.0
+version:            0.5.3.0
 
 -- A short (one-line) description of the package.
 synopsis:           A PhLADiPreLiO implementation for Ukrainian that uses hashes