UVA844 Pousse

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=10&page=show_problem&problem=785 [PDF](https://uva.onlinejudge.org/external/8/p844.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA844/4e020c603d23a7f609a8b503fd37b98c4ccb9442.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA844/3c1c560ddcf48d081ddc6526e78b1e75eef3eac5.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA844/d61e0869336b29212f14a66c4c4a8e5fc39180b7.png)