UVA12442 Forwarding Emails

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=279&page=show_problem&problem=3873 [PDF](https://uva.onlinejudge.org/external/124/p12442.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12442/f102cb8bc608702d0e245041381dd90359e60ad3.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12442/dc05f281ab506f825e12b7172e6770362e1bbc6b.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12442/7180cb064c4f0221f50e61310d5d44e30804d4fa.png)