UVA11209 Be Together Again and Forever

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2150 [PDF](https://uva.onlinejudge.org/external/112/p11209.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11209/4605b7193a0552fb831f6207d66ffdcd5fee6d03.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11209/6fc17962a1986ef365338082eb47213f84c84154.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11209/62022cae4c26cac2f48f7623f8b2c966dfdff160.png)