36 lines
580 B
Python
36 lines
580 B
Python
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#!/usr/bin/env python
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import itertools
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import sys
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from typing import List
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def step(value: int, subject: int) -> int:
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value *= subject
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value %= 20201227
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return value
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def solve(raw: List[int]) -> int:
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value = 1
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for rounds in itertools.count(1):
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value = step(value, 7)
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if value == raw[0]:
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break
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key = 1
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for __ in range(rounds):
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key = step(key, raw[1])
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return key
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def main() -> None:
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input = [int(line) for line in sys.stdin.readlines()]
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print(solve(input))
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if __name__ == "__main__":
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main()
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