UVA11508 Life on Mars?

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2503 [PDF](https://uva.onlinejudge.org/external/115/p11508.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11508/76ce1a7320442be9a56e64b94d44c4beb80352d2.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11508/18a9427ec8369f1e8809ffc828082df020c8df77.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11508/5b85eec420b331e71a08e41e209514db907de82b.png)