UVA10053 Envelopes

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=12&page=show_problem&problem=994 [PDF](https://uva.onlinejudge.org/external/100/p10053.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10053/db9c88c26c368b55655f68ceb6c996dcec34d3b9.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10053/ba6f3bc94779b2e16678a72de9471dac18878b8a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10053/de23bf7d14b6f140448d6c16ee6ccb51304d4073.png)