UVA513 Window Frames

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=7&page=show_problem&problem=454 [PDF](https://uva.onlinejudge.org/external/5/p513.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA513/15cd3f542d7d055612a1c0c65a2826e9c5854aef.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA513/aef754ef30971665472d6e90523b22574ba3c42a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA513/3f716850b6162bfd52cf8051afe01d7603d499aa.png)