UVA593 MBone

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=7&page=show_problem&problem=534 [PDF](https://uva.onlinejudge.org/external/5/p593.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA593/582b1be5624389d63cdc8ea90806eb1ec5502590.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA593/b2d93eb59eaf8fcabc6a66423c5ecc0b8c884fd0.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA593/37f6a7fed81d244313eadb48a07a6f0832352e0b.png)