UVA11595 Crossing Streets EXTREME

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2642 [PDF](https://uva.onlinejudge.org/external/115/p11595.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11595/798e113ba83a1409d3a215863101e1efb0bff5d0.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11595/c23604609675932d16d7c48a4904cbb8c9c8959d.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11595/f18fc229d0a76a29bf6fda949c2dd0847d742bce.png)