import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        
        Scanner sc = new Scanner(System.in);
        int a=0;
        int b=0;
        int t=0;
        a=sc.nextInt();
        b=sc.nextInt();
        t=sc.nextInt();
        
        System.out.println(((int)(t+0.5)/a)*b);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        
        Scanner sc = new Scanner(System.in);
        int a=0;
        int b=0;
        int t=0;
        a=sc.nextInt();
        b=sc.nextInt();
        t=sc.nextInt();
        
        System.out.println(((int)(t+0.5)/a)*b);
    }
} Main public static void main(String[] args) throws Exception {
        // Your code here!
        
        Scanner sc = new Scanner(System.in);
        int a=0;
        int b=0;
        int t=0;
        a=sc.nextInt();
        b=sc.nextInt();
        t=sc.nextInt();
        
        System.out.println(((int)(t+0.5)/a)*b);
    } main {
        // Your code here!
        
        Scanner sc = new Scanner(System.in);
        int a=0;
        int b=0;
        int t=0;
        a=sc.nextInt();
        b=sc.nextInt();
        t=sc.nextInt();
        
        System.out.println(((int)(t+0.5)/a)*b);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a=0; a 0 int b=0; b 0 int t=0; t 0 a=sc.nextInt() a sc.nextInt() sc.nextInt sc b=sc.nextInt() b sc.nextInt() sc.nextInt sc t=sc.nextInt() t sc.nextInt() sc.nextInt sc System.out.println(((int)(t+0.5)/a)*b) System.out.println System.out System System.out ((int)(t+0.5)/a)*b ((int)(t+0.5)/a) (int)(t+0.5) t 0.5 a b String[] args args public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        
        Scanner sc = new Scanner(System.in);
        int a=0;
        int b=0;
        int t=0;
        a=sc.nextInt();
        b=sc.nextInt();
        t=sc.nextInt();
        
        System.out.println(((int)(t+0.5)/a)*b);
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        
        Scanner sc = new Scanner(System.in);
        int a=0;
        int b=0;
        int t=0;
        a=sc.nextInt();
        b=sc.nextInt();
        t=sc.nextInt();
        
        System.out.println(((int)(t+0.5)/a)*b);
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        
        Scanner sc = new Scanner(System.in);
        int a=0;
        int b=0;
        int t=0;
        a=sc.nextInt();
        b=sc.nextInt();
        t=sc.nextInt();
        
        System.out.println(((int)(t+0.5)/a)*b);
    }
}
