UVA12256 Making Quadrilaterals

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=244&page=show_problem&problem=3408 [PDF](https://uva.onlinejudge.org/external/122/p12256.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12256/b608b185b109a1db0bce51c491d9efae588b2f35.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12256/57c7cfa1512580cf2a6708b3ef3b5ac6a658010f.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12256/976ca1f17f3316197f649c2b3e49904efaa0a30a.png)