UVA11457 Classified

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=26&page=show_problem&problem=2452 [PDF](https://uva.onlinejudge.org/external/114/p11457.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11457/8c9e422fa0a3ed224ed91874ae5f5032f029a7cc.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11457/36d82b2360f45fbaead8b8ef52394154d3847a1e.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11457/f6d93de40802edcfcccd16d458866d27e87b92d7.png)