from operator import xor

def ords(text):
    for char in text:
        yield ord(char)


def tobits(num):
    for bit in bin(num)[2:]:
        yield int(bit)


def frombits(stream):
    return int('0b'+''.join(map(str, stream)), 2)


def bitstream(text):
    out = []
    for num in ords(text):
        out += tobits(num)
    return out


def cumxor(stream):
    first = stream[0]
    stream = stream[1:]
    last = first
    for i in range(len(stream)):
        stream[i] = stream[i] ^ last
        last = stream[i]
    return [last ^ first] + stream


def hash(stream):
    first = stream[0]
    stream = stream[1:]
    last = first
    out = []
    for i in range(len(stream)):
        stream[i] = stream[i] ^ last
        last = stream[i]
        out += stream[:i+1]
    out = cumxor(out)
    return out


def chunks(l, n):
    n = max(1, n)
    return [l[i:i + n] for i in range(0, len(l), n)]


def digest(h):
    chunked = chunks(h, 128)
    d, m, l = chunked[0], chunked[1:-1], chunked[-1]
    l += d
    l = l[:128]
    m.append(l)
    del l
    for l in m:
        for i in range(len(d)):
            d[i] = xor(d[i],l[i])
    return hex(frombits(cumxor(d)))[2:]



t = 'bytesandcoffee'
T = 'Bytesandcoffee'
a = bitstream(t)
A = bitstream(T)
b = digest(hash(a))
B = digest(hash(A))
print(b)
print(B)