UVA10884 Persephone

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=20&page=show_problem&problem=1825 [PDF](https://uva.onlinejudge.org/external/108/p10884.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10884/a03e7d05beb981e6b8c24d01364730b2f9203d5d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10884/af107d00121969094e95814502a1f2a8ca746559.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10884/c935ee94196644650f69d1ace4cfacd7997d69a2.png)