UVA13138 Kites

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=871&page=show_problem&problem=5049 [PDF](https://uva.onlinejudge.org/external/131/p13138.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13138/3689d3181df2400a1c7c6bc0eccfd045796bfc2d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13138/0955f129cc8409f19408045efcde76d0872bf03b.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13138/1b8ae57e0cfafb1d6a920779ee4e294f922328cd.png)