issue86-brackets-00.typ

(([a], [b], []), ([a], [b], []), ([a], [b], []), ([a], [b], []), ([a], [b], []), ([a], [b], []), ([a], [b], []), ([a], [b], []))

[][][][][][][][][][][][][][][][][][][][[][][][][][][][][][][][][][][][][][][][]]

[outer[#[[[[#[[[#[inner[x]y]a]b]mid]x]y]z]w]outer]