UVA12204 Routing

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=244&page=show_problem&problem=3356 [PDF](https://uva.onlinejudge.org/external/122/p12204.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12204/a3e8ac6d431ab6aeba671183d29de90f147d8678.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12204/7ce1f85f1c385d7c56359701a3d2d5a774a4169e.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12204/2fb65a7157b4bf9da6cacd725468a48294f40c00.png)