
We are given the following message:```104 85 69 354 344 50 149 65 187 420 77 127 385 318 133 72 206 236 206 83 342 206 370```We apply what the description says.
```pythonimport string
alphabet = string.ascii_lowercasealphabet += "0123456789_"flag_enc = [104, 85, 69, 354, 344, 50, 149, 65, 187, 420, 77, 127, 385, 318, 133, 72, 206, 236, 206, 83, 342, 206, 370]
flag = ""for c in flag_enc:     pos = pow(c, -1, 41)    flag += alphabet[pos-1]
print(flag)```