UVA12874 Blanket

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=861&page=show_problem&problem=4739 [PDF](https://uva.onlinejudge.org/external/128/p12874.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12874/3dea46aded7952b003b42585e19b66174409c54c.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12874/8c03b9d1bc0ca990eabca085a071b86385803151.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12874/71ee3241fccfdebbf24f9df9f9d8e64cc7c88840.png)