~ (tilde) (tested and it work).
Possibly | { } too if they work.
If your names are all in upper case, I suspect that _ (underscore) would do it to.
Number are before letters.
If you use accents (I don't know if they work in the first place), tilde probably won't work.
For an idea of the expected order
https://en.wikipedia.org/wiki/...Latin_(Unicode_block)
the last parentheses is part of the url...
This message was last edited by the user at 00:14, Tue 15 Jan 2019.