UVA151 Power Crisis

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=87 [PDF](https://uva.onlinejudge.org/external/1/p151.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA151/2b7fc9e4df48b383902b9f5285f0316b5f437407.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA151/e69ea5e0da52f9c6b45414318b78dab4f5faf403.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA151/47bd9da34308490bfea1a9eb4e0baa05fdd433d1.png)