Polyglot of purely literal answers, 9 bytes
333111222
This is a community wiki post for collecting answers that are just a literal that the language in question prints out automatically. Because it's a community wiki, feel free to edit it to add more languages where it works.
This program works in:
- PHP
- HTML (arguably not a language)
- Jelly (and M)
- 7 (more interesting, because the program's interpreted as both data and code; the first
3
prints the data, the rest of the program is useless stack manpulation) - CJam
- Japt
- Carrot
- R (the R display also outputs [1] as metadata)
- RProgN
- Actually (though it actually prints
2\n2\n2\n1\n1\n1\n3\n3\n3\n
) - ///
- Noodel
- TI-Basic
- SimpleTemplate
- ReRegex
- Husk
- Resource (although this outputs the string reversed)
cat
Ignoring the final newline, this is valid in quite a few more languages:
- 05AB1E
- 2sable
- GolfScript
- PowerShell
- m4 (any version, the program is portable)
- Pyth
- MATL
- Pip
- Stax
- Ink
- Keg
- Vyxal
Most links go to Try It Online!