UVA12731 太空站之谜 Mysterious Space Station

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=823&page=show_problem&problem=4584 [PDF](https://uva.onlinejudge.org/external/127/p12731.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12731/1a7be9f4af494a95588e92bfdd0c659b6b3311af.png)

Input Format

N/A

Output Format

N/A