UVA13236 Hedgehogs Communicate

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=878&page=show_problem&problem=5159 [PDF](https://uva.onlinejudge.org/external/132/p13236.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13236/d965fae23c208186243cdc0fb11064730badb00d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13236/d3e90f03a915029606d732e59a1c877c8f332d74.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13236/73f0f1f493ad5054af18dbcfcef4eebaa69023a5.png)