from Crypto.Util.number import *
from Crypto.Cipher import AES
DEM_IV = "\xAA"*16
m = 56415482737989966166823194075124309191579838995662974007326170304203076762730
dem_c = 3513567433984887885115224229823172531083230224356638967377256761767267040054250835842705493954920117835275646236313L
cipher = AES.new(long_to_bytes(m, 32), mode = AES.MODE_CBC, IV = DEM_IV)
print cipher.decrypt(long_to_bytes(dem_c, AES.block_size))