UVA12166 修改天平 Equilibrium Mobile

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=243&page=show_problem&problem=3318 [PDF](https://uva.onlinejudge.org/external/121/p12166.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12166/83186a3dd84e4e69ea19eb52b35d0c79b5489b61.png)

Input Format

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Output Format

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