Decode this message encrypted with ROT13: `Gur synt vf va gur pbqr.`
Hint 1: ROT13 shifts letters by 13 places. Try an online tool or the `tr` command to decode.
Hint 2: Decoding it should yield an English sentence about a flag in code.
Solution:
The message `Gur synt vf va gur pbqr.` decodes via ROT13 to `The flag is in the code.` ROT13 shifts each letter 13 places in the alphabet, a simple substitution cipher.

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