UVA10959 The Party, Part I

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=21&page=show_problem&problem=1900 [PDF](https://uva.onlinejudge.org/external/109/p10959.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10959/ccdf8de4af7082656dd824a4559065b222a16eeb.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10959/b79e1dce85d71b01c80a4e4a21f07f18e376148f.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10959/40ef3231a81cc4479c80b47235d35326f36bf8c0.png)