22 lines
623 B
Python
22 lines
623 B
Python
if __name__ == "__main__":
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message = format(int.from_bytes(input().encode("ASCII"), "big"), "b")
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generator = "10001000000100001"
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gen_deg = len(generator)
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message += "0" * (gen_deg - 1)
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if len(message) % 2 != 0:
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message = "0" + message
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while True:
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if message[0] == "0":
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message = message[1:]
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else:
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chunk = message[:gen_deg]
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if len(chunk) < gen_deg:
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print(hex(int(chunk, 2)))
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break
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remainder = format(int(chunk, 2) ^ int(generator, 2), "b")
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message = remainder + message[gen_deg:] |