UVA13206 Beautiful Triad

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=878&page=show_problem&problem=5129 [PDF](https://uva.onlinejudge.org/external/132/p13206.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13206/3eb157a484bf77e559ecf6fb4871bcb862c5ad22.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13206/c1d35c687cdc21d6ec3900c95ffab5af10084d76.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13206/16ffab1f22b7fe84f3989e2f9e7ba529179ad43e.png)