DMOJ Capture The Flag '20 F3 - Four Taps

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Points: 7
Time limit: 0.5s
Memory limit: 128M

Problem type

We managed to recover a FLAC file, but it seems broken. It looks like a few (4) bits were flipped near the start of the file. Can you fix it and recover the flag?

broken.flac 3d506be4434f2f537215a4995e497405 4.4M

Hint: all Latin characters in the flag are lowercase. You will need to insert the {, }, and _ characters back in. As always, _ are only used to separate words.
Hint 2: the flag is exactly 37 characters long.

This problem is from DMOJ Capture The Flag '20. For more details, please view the contest page.


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