UVA12024 Hats

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=242&page=show_problem&problem=3175 [PDF](https://uva.onlinejudge.org/external/120/p12024.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12024/25a75cc3aa1181e89f3439302a46c65776fbdd03.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12024/6e06f4c8abc36d2c27721c4c1a100d96fdc1440a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12024/5795feaddca228bb541652bdb5a4f2bf8601a4e5.png)