UVA10381 The Rock

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=15&page=show_problem&problem=1322 [PDF](https://uva.onlinejudge.org/external/103/p10381.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10381/acfad0b5c64041e8c531a30e257e3ebee9ca0802.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10381/eeb82948aad2f9b666c31fa27bc3439c18157471.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10381/ac3beb11fb57b84f8d5b63ef6a3d469b2b371f7a.png)