UVA721 Invitation Cards

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=9&page=show_problem&problem=662 [PDF](https://uva.onlinejudge.org/external/7/p721.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA721/b5d81d10ea8dd22375a655a6efd0545d43b8fd3a.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA721/780ebac435185c89d05d1a569f92be6d75a560cb.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA721/b95fe8650eefa879979741100febc548dbb59920.png)