Basic-Mod1
Take each number mod 37 and map it to the following character set: 0-25 is the alphabet (uppercase), 26-35 are the decimal digits, and 36 is an underscore. Wrap your decrypted message in picoCTF.
Just follow the instructions, really.
from string import ascii_uppercase, digits
numbers = [
165, 248, 94, 346, 299, 73, 198, 221, 313, 137, 205, 87, 336, 110, 186, 69, 223, 213, 216, 216, 177, 138
]
alphabet = ascii_uppercase + digits + '_'
flag = ''
for n in numbers:
flag += alphabet[n % 37]
print(flag)
# picoCTF{R0UND_N_R0UND_B6B25531}
Last updated
Was this helpful?