UVA776 Monkeys in a Regular Forest

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=9&page=show_problem&problem=717 [PDF](https://uva.onlinejudge.org/external/7/p776.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA776/a706ab6b71c6fd267df4d3df3c73df93f0108a4a.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA776/37b6ce3072e43739399c6b7539216342f06713dc.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA776/9b1a0b87ba69c87a4afacd3df103807f84a09e65.png)