import random

MAX_UINT32 = 2**32-1
HASHMASK = MAX_UINT32

def hashbytes32(data):
    if len(data) == 0:
        return 0
    x = prefix
    x ^= data[0] << 7
    for byte in data:
        x = (1000003 * x) ^ byte
        x &= HASHMASK
    x ^= len(data)
    x ^= suffix
    if x == -1:
        x = -2
    return x

DATA1 = b"\x00\xcf\x0b\x96\x19"
DATA2 = b"\x00\x6d\x29\x45\x18"
while True:
    prefix = (random.randint(0, 2**24-1) << 8) | 0x00
    suffix = random.randint(0, MAX_UINT32)
    a = hashbytes32(DATA1)
    b = hashbytes32(DATA2)
    print(a==b, "%08x" % prefix, "%08x" % suffix)