#cryptoctf2021 #!/usr/bin/env sage from sage.all import * from flag import flag global p, alphabet p = 71 alphabet = '=0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$!?_{}<>' flag = flag.lstrip('CCTF{').rstrip('}') assert l…