UVA10615 Rooks

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=18&page=show_problem&problem=1556 [PDF](https://uva.onlinejudge.org/external/106/p10615.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10615/47edafcb1d14f8b8083abd4db41b2ad2b1d3abd3.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10615/fcb13022a221491e87d6dd98337ae4ee91137ef1.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10615/43db1f9f7cbdb09961a483153fd2bd454ca50f63.png)