UVA410 Station Balance

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=6&page=show_problem&problem=351 [PDF](https://uva.onlinejudge.org/external/4/p410.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA410/b81a2e3055d239cce7169c25c6b7e1e03b7a055d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA410/440985d4f47acf89953f8ca455c15e29cb8703db.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA410/8e01c2af2f2861c236ce98d4df7eb880186913f2.png)