UVA11224 Let's swim!

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2165 [PDF](https://uva.onlinejudge.org/external/112/p11224.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11224/58fee348e1fd451d9e6c10e42c69c628441e15e5.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11224/1b4c5d290b35df2eeedc1441e15890f22e9c8186.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11224/2745f310083f8b81f197654a38b3afc6b8d0ebe0.png)