UVA12178 Postal Charges

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=243&page=show_problem&problem=3330 [PDF](https://uva.onlinejudge.org/external/121/p12178.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12178/087aaf94c7ee37da569ad5b953c369742da07730.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12178/981ae8dec03a3565d3f067d00fd101c5a04fc5c3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12178/acb15620d2bc382e39ca71b0ac6bfdeb9e552411.png)