UVA11497 Set

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=26&page=show_problem&problem=2492 [PDF](https://uva.onlinejudge.org/external/114/p11497.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11497/8c90bb8878ce84a4818015f7486ce5bdf7984566.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11497/e8cf58e6348bb6c04de8ec16c7f8e544906162df.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11497/f61997fc32ac4fcd672cf652ce62e3c2a148209b.png)