UVA10318 Security Panel

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=15&page=show_problem&problem=1259 [PDF](https://uva.onlinejudge.org/external/103/p10318.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10318/c2166c40a85d0f56f977e556942a838675168529.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10318/8bfa91fdb3c064c74427654896cf14d12e9752e3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10318/c0dd9528ab3b05edcf824f83dd309d78dcefda02.png)