Peter's Smokes

题目描述

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=15&page=show_problem&problem=1287 [PDF](https://uva.onlinejudge.org/external/103/p10346.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10346/895630ea3bc5e82c1663474dcb344b4a208ac778.png)

输入输出格式

输入格式

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10346/859c749f43b2cb090080b2f3024b81d34d3fb1af.png)

输出格式

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10346/caa949c68e88658b1ee50418dbc51c7ed09343c6.png)

输入输出样例

输入样例 #1

4 3
10 3
100 5

输出样例 #1

5
14
124