UVA11336 DRM

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=25&page=show_problem&problem=2311 [PDF](https://uva.onlinejudge.org/external/113/p11336.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11336/551d008b3e05bf25334031abf6c82dd214d103b0.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11336/a30410eff8fd0c291b063bcccc049c4aac172cdf.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11336/c5e7bf8f83ee5e4a379dc726b54cd85831251f26.png)