UVA11275 3D Triangles

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2250 [PDF](https://uva.onlinejudge.org/external/112/p11275.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11275/72339d110181a7692fcb581c2c91ede31fd32bf4.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11275/3d1771cdbbdc9e4977fb2da3dccc93d09d697327.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11275/41a22a61582aed6ad2f46d3f7d06e49e549440c0.png)