UVA11523 Recycling

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2518 [PDF](https://uva.onlinejudge.org/external/115/p11523.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11523/c2729181c874edb03a628f960b67af8262304257.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11523/ca3946f3a5157af77c15decacc7e3ac46167954c.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11523/0287ee177b13a93a7bfcbc2d0f5e0c78444bb9eb.png)