UVA11728 Alternate Task

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=117&page=show_problem&problem=2828 [PDF](https://uva.onlinejudge.org/external/117/p11728.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11728/f33f05670250846c8920a340ee8ae06bfc7f5192.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11728/d9b68a9c3ac0ff50925c70d6dd253013081a93f3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11728/a72b3b6c854efcf6312bb2d51e8917877c4118ac.png)