/******************************************************************************

                            Online C Compiler.
                Code, Compile, Run and Debug C program online.
Write your code in this editor and press "Run" button to compile and execute it.

*******************************************************************************/

#include <stdio.h>

int main()
{
    int a,b,t;
    int s;
    scanf("%d",&a);
    scanf("%d",&b);
    scanf("%d",&t);
    s = t/a;
    b = b*s;
    printf("%d",b);
    return 0;
}
