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Yes! It works. Thank you very much. There's an issue, however: it's too complicated for me, and I can't figure out how it works. So I simply copied your solution and pasted it in my file. I'm just a LaTeX user and never intended to program in LaTeX except for the simplest cases. I thought the brackets task should be simple, but it turns out it's not. So, could you please write some comments explaining your code?

Ilia
– Ilia

2026-02-27 20:36:36 +00:00
Commented yesterday
@Ilia I added some explanations

egreg
– egreg

2026-02-27 21:25:23 +00:00
Commented yesterday

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Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)

<https://example.com>

[example](https://example.com)

<a href="https://example.com">example</a>

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