UVA12819 Block Toy

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=861&page=show_problem&problem=4684 [PDF](https://uva.onlinejudge.org/external/128/p12819.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12819/1dba85aee37aee1711f5b7301559260d896b310e.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12819/357543f7e8215a5ce4baadeecc718673ed7b43bf.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12819/b1fc17d29618d178ce33edb24e5417762fda8f3b.png)