UVA951 The Pieces of the Puzzle

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=11&page=show_problem&problem=892 [PDF](https://uva.onlinejudge.org/external/9/p951.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA951/afb4cd08e7b206bb8fda265854f1d8f3fd2ec2f9.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA951/c4c13d992de87e150448eff0205333712719e881.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA951/2850ea007f50c000c8c2fcde011660419eb4c251.png)