16 lines
259 B
Python
16 lines
259 B
Python
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#!/usr/bin/env python
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import sys
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from typing import List
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def solve(nums: List[int]) -> int:
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return sum(num // 3 - 2 for num in nums)
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def main() -> None:
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print(solve(list(int(lines) for lines in sys.stdin)))
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if __name__ == "__main__":
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main()
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