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つらら

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日本語

Language

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Time limit
1000 ms
Memory limit
64 MB (no extra memory)
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0
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0
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Statement

つらら

つらら

Examples

Sample input 1
4 6
4
2
3
5
Sample output 1
8
Sample input 2
6 10
3
4
1
9
5
1
Sample output 2
15

Notes

原典:JOI 2009/2010 本選、情報オリンピック日本委員会。CC BY-SA 4.0。

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This problem accepts only these languages.

C++20