UVA861 Little Bishops

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=10&page=show_problem&problem=802 [PDF](https://uva.onlinejudge.org/external/8/p861.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA861/03ae0a23d79a74546f5cd25156c2761a690f0f62.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA861/2e63a374cae52fd4d00981d1bc0db7dc6fc4b153.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA861/069d6dd3d92ef6754eb3db33449b7bdb9aef5c30.png)