Polyglot of purely literal answers, 9 bytes

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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)

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

Most links go to Try It Online!