UVA154 Recycling

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=90 [PDF](https://uva.onlinejudge.org/external/1/p154.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA154/10aab95e8c27db3e0f30989458bb3a148758c488.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA154/e6a991c3b76a9c1e3039d4734c1994b2292831e8.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA154/5941302286e082caf8bec2a5513718ad30b657ca.png)