UVA315 Network

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=5&page=show_problem&problem=251 [PDF](https://uva.onlinejudge.org/external/3/p315.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA315/a2a26c875d93d794472c45d697ace1483000fe60.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA315/34d78698954d00add1747c587fc7c1e79c99dca3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA315/4ba82a82c04baed808d0559795afcabe72adadc4.png)