UVA421 Polygonal Puzzle

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=6&page=show_problem&problem=362 [PDF](https://uva.onlinejudge.org/external/4/p421.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA421/f80f03b1322fa8bbdd8a1f4f74cd7683bce07608.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA421/8cfe896e41839b424400c0acbc87592e38416004.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA421/22faef0cba9539dbe6b3488f7af2bd525c6d6c0a.png)