#!/usr/bin/python

def amls_round(stream):
    if len(stream) < 2:
        return []
    res = []
    s1 = []
    sa = []
    p0 = None
    for p1 in stream:
        if p0 == None:
            p0 = p1
        else:
            if p0 == p1:
                sa.append(0)
                s1.append(p0)
            else:
                sa.append(1)
                res.append(p0)
            p0 = None
    return res + amls_round(sa) + amls_round(s1)

if __name__ == "__main__":
    rn = open('/dev/urandom', 'r')
    random_chars = rn.read(2)
    stream = []
    for char in random_chars:
        c = ord(char)
        for i in range(0,8):
            stream.append((c >> i) & 1)
    print amls_round(stream)