UVA10048 噪音恐惧症 Audiophobia

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=12&page=show_problem&problem=989 [PDF](https://uva.onlinejudge.org/external/100/p10048.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10048/a0f9c1cc0e8f6a9841e277ba158604f441ea9cdf.png)

Input Format

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Output Format

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