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?
Hint: all latin characters in the flag are lowercase. You will need insert the
_ 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.