import hashlib
from struct import *

for i in xrange(0,0xffff):
    hash = hashlib.md5(pack('I',i ^ 0x1f9933d ^ 0xc7fffffa)).digest()
    if unpack('I',hash[:4])[0]^0x86f4fa3f == 0x5bffffff:
        print 'right'
        print `hash`