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
//台湾旅行中(Day 1)
import java.util.Scanner;

public class Main {

	public static void main(String args[]) {

		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();

		System.out.println( ((int)(T+0.5)/A) * B);
	}

}
