UVA937 Kriss Kross Puzzle

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=11&page=show_problem&problem=878 [PDF](https://uva.onlinejudge.org/external/9/p937.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA937/e23e7849fd966fb18d636ad49526ed3ee2ae0bfa.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA937/dfbf8b2b840e73176017d1c01ff79252307cdba2.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA937/c8c4f104f7bbe79f330bb88dd8528d8d7f1b85ad.png)