UVA874 2D Representations

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=10&page=show_problem&problem=815 [PDF](https://uva.onlinejudge.org/external/8/p874.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA874/31bebeb3f4a894c877d62d671eba2b764780db20.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA874/1245824d12fa4640e0a2a75a033544c47005c9c8.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA874/66d4dc55683049233c4930ccef25b58a7bda6684.png)