UVA779 Wily Hacker's Problem

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=9&page=show_problem&problem=720 [PDF](https://uva.onlinejudge.org/external/7/p779.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA779/1eb30daa5e16b418fff42e0b38026975185bb65a.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA779/a2942c09abf710c528afdd14b097aab515e7b597.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA779/40a3a4ecf74d6f4dffc82ef290eccb78b151126a.png)