UVA191 Intersection

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=127 [PDF](https://uva.onlinejudge.org/external/1/p191.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA191/c1ab811971daf0d39794147108111f605450c9f6.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA191/18299f5089cf5311fc19c5b3ee2d2df4b6740fc9.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA191/5a4630ce3bc3848984079adbeddd163f49e601e2.png)