题目描述
A biscuit making machine produces B biscuits at the following moments: A seconds, 2A seconds, 3A seconds and each subsequent multiple of A seconds after activation.
Find the total number of biscuits produced within T + 0.5 seconds after activation.
Constraints
- All values in input are integers.
- $1 \leq A, B, T \leq 20$
Input
Input is given from Standard Input in the following format:
A B T
Output
Print the total number of biscuits produced within T + 0.5 seconds after activation.
Examples
Input
3 5 7
Output
10
Input
3 2 9
Output
6
Input
20 20 19
Output
0
输入格式
见题面
输出格式
见题面
样例输入
3 5 7
样例输出
10