UVA11995 I Can Guess the Data Structure!

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=229&page=show_problem&problem=3146 [PDF](https://uva.onlinejudge.org/external/119/p11995.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11995/55cb8a2c5cf1532ff4a8dff640c7538c0998c78c.png)

Input Format

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Output Format

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