UVA11775 Unique Story

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=117&page=show_problem&problem=2875 [PDF](https://uva.onlinejudge.org/external/117/p11775.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11775/d71a1cab25139ef83d5f6792e496328c9ca89bb0.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11775/7b667798464d6ad7f4890efef63d2e0b03bcbbe4.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11775/d0386bf3f690e8c3d6c66276db06487b35123b9f.png)