import java.util.Scanner;

public class Main {
    public static void main(String args[]) throws Exception {
        Scanner s = new Scanner(System.in);
        double A = s.nextDouble();
        double B = s.nextDouble();
        double T = s.nextDouble();
        double tmp = Math.floor((T + 0.5)/A) * B;
        System.out.println((int)tmp);
        s.close();
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String args[]) throws Exception {
        Scanner s = new Scanner(System.in);
        double A = s.nextDouble();
        double B = s.nextDouble();
        double T = s.nextDouble();
        double tmp = Math.floor((T + 0.5)/A) * B;
        System.out.println((int)tmp);
        s.close();
    }
} Main public static void main(String args[]) throws Exception {
        Scanner s = new Scanner(System.in);
        double A = s.nextDouble();
        double B = s.nextDouble();
        double T = s.nextDouble();
        double tmp = Math.floor((T + 0.5)/A) * B;
        System.out.println((int)tmp);
        s.close();
    } main {
        Scanner s = new Scanner(System.in);
        double A = s.nextDouble();
        double B = s.nextDouble();
        double T = s.nextDouble();
        double tmp = Math.floor((T + 0.5)/A) * B;
        System.out.println((int)tmp);
        s.close();
    } Scanner s = new Scanner(System.in); s new Scanner(System.in) double A = s.nextDouble(); A s.nextDouble() s.nextDouble s double B = s.nextDouble(); B s.nextDouble() s.nextDouble s double T = s.nextDouble(); T s.nextDouble() s.nextDouble s double tmp = Math.floor((T + 0.5)/A) * B; tmp Math.floor((T + 0.5)/A) * B Math.floor((T + 0.5)/A) Math.floor Math (T + 0.5)/A (T + 0.5) T 0.5 A B System.out.println((int)tmp) System.out.println System.out System System.out (int)tmp s.close() s.close s String args[] args public class Main {
    public static void main(String args[]) throws Exception {
        Scanner s = new Scanner(System.in);
        double A = s.nextDouble();
        double B = s.nextDouble();
        double T = s.nextDouble();
        double tmp = Math.floor((T + 0.5)/A) * B;
        System.out.println((int)tmp);
        s.close();
    }
} public class Main {
    public static void main(String args[]) throws Exception {
        Scanner s = new Scanner(System.in);
        double A = s.nextDouble();
        double B = s.nextDouble();
        double T = s.nextDouble();
        double tmp = Math.floor((T + 0.5)/A) * B;
        System.out.println((int)tmp);
        s.close();
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String args[]) throws Exception {
        Scanner s = new Scanner(System.in);
        double A = s.nextDouble();
        double B = s.nextDouble();
        double T = s.nextDouble();
        double tmp = Math.floor((T + 0.5)/A) * B;
        System.out.println((int)tmp);
        s.close();
    }
}