UVA643 Bulk Mailing

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=8&page=show_problem&problem=584 [PDF](https://uva.onlinejudge.org/external/6/p643.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA643/40d30b50be0ecd11d4f92274f06a4fd0ff817d39.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA643/6bacb3ae18c5d8def5f809e71f0d08272c238073.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA643/8617dfce28cfec6725f1d71077054dfd7bf7b233.png)