UVA11581 Grid Successors

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2628 [PDF](https://uva.onlinejudge.org/external/115/p11581.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11581/1762e854ac672570dbc6e2c65560f2ad68a036c9.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11581/657ef12bfe6750fef5a06011854fa353b4304cc1.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11581/e28ed9c6b6b0905c2799873d214ae9b02b010d0f.png)