UVA10828 Back to Kernighan-Ritchie

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=20&page=show_problem&problem=1769 [PDF](https://uva.onlinejudge.org/external/108/p10828.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10828/50222531378b4c77951f3230c20499f6b2f0f4d5.png)

Input Format

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Output Format

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