UVA519 Puzzle (II)

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=7&page=show_problem&problem=460 [PDF](https://uva.onlinejudge.org/external/5/p519.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA519/db6c96d334ea7685c7e1a94e96d4b53467dabbb6.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA519/dbdba3744f2eb9be8855ee0604486583a98a5e61.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA519/ce7b85509122d08405d1897d9ae91eb3e6d303ef.png)