round-37 did well again, didn’t want to commit to solving all of the challenges because i don’t know how to do all of them flag-in-url sanity-check-round-37 no-cigar seesawr-2.0 rather-sneaky-arithmetic xor64 time-signer lfsrcrypt fuzziness cascade disorderly-conduct cyberchef you-can’t-reverse-me pwny army