UVA12835 Fitting Pipes Again

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=861&page=show_problem&problem=4700 [PDF](https://uva.onlinejudge.org/external/128/p12835.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12835/9d93d72250e6ae6312876360044d569593dbcf50.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12835/b073710ef619755e32613471d84918968c6aac8a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12835/86314cd0fd4999028d6106917e8c84480a8c5bad.png)