UVA12401 Metal Powers

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=279&page=show_problem&problem=3832 [PDF](https://uva.onlinejudge.org/external/124/p12401.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12401/31c32e4257b6a4b6e2cea02a38ad0f80e274cbcc.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12401/71ec70837a96a107d75efc0f034103576d281220.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12401/6aab4d7aa4469366f4eda0b89f513c7758c5b13e.png)