UVA12865 Volume Control

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=861&page=show_problem&problem=4730 [PDF](https://uva.onlinejudge.org/external/128/p12865.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12865/5097455b7586a0293f5dbfd5f9d9912e3fcf6bd7.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12865/feb592532115532026d80e45efefedaf9095b9dc.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12865/6ee72ea1afed394d76ba41e40ac6a3b9c95fd474.png)