# [rev] mask - SECCON Beginners CTF 2020

###### tags: `SECCON Beginners CTF 2020` `rev`

tokudake.

import string

masked_a = "atd4`qdedtUpetepqeUdaaeUeaqau"
masked_b = "c`b bk`kj`KbababcaKbacaKiacki"
flag = ''

for i in range(len(masked_a)):
    for ch in string.printable:
        if chr(ord(ch) & 0x75) == masked_a[i] and chr(ord(ch) & 0xeb) == masked_b[i]:
            flag += ch

print(flag)
# ctf4b{dont_reverse_face_mask}