UVA12563 劲歌金曲 Jin Ge Jin Qu hao

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=441&page=show_problem&problem=4008 [PDF](https://uva.onlinejudge.org/external/125/p12563.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12563/4c8c27aa6d89db95779a41e8444d54159b8ff16d.png)

Input Format

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Output Format

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