UVA12235 Help Bubu

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=244&page=show_problem&problem=3387 [PDF](https://uva.onlinejudge.org/external/122/p12235.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12235/905e7009bb0b3f6211e24dcd559fe6c731115991.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12235/cc6a957804e1ce94a66afb4c8534d5ab44aff44a.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12235/e8119388f568eb991908ce39add069a68b6874aa.png)