UVA12412 A Typical Homework (a.k.a 师兄帮帮忙)

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=279&page=show_problem&problem=3843 [PDF](https://uva.onlinejudge.org/external/124/p12412.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12412/7b151e0fc93844bb64b77a03e02d19d07f170241.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12412/73431faf6ab23dec35002dff2dd0f2c74ec2194d.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12412/4f1545d31911e6d31c075e45929f73262b50c6fc.png)