UVA10697 Firemen barracks

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=18&page=show_problem&problem=1638 [PDF](https://uva.onlinejudge.org/external/106/p10697.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10697/72b8f177b5cb31caae9979043e00238a97a625f5.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10697/bc558590a2c1d3f18cd857d7fc9e673b1743ea27.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10697/dd160c33b8efb4419bde6047611b5e0bee337381.png)