18 lines
327 B
Python
Executable file
18 lines
327 B
Python
Executable file
#!/usr/bin/env python
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import sys
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def solve(input: str) -> int:
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nums = [int(n) for n in input.strip()]
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half = len(nums) // 2
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return sum(n for n, m in zip(nums, nums[half:] + nums[:half]) if n == m)
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def main() -> None:
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input = sys.stdin.read()
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print(solve(input))
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if __name__ == "__main__":
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main()
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