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();

        double x = t+0.5;

        int bisnum = ((int)(x / a) * b);

        System.out.println(bisnum);
    }

} import java.util.Scanner; Scanner java.util 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();

        double x = t+0.5;

        int bisnum = ((int)(x / a) * b);

        System.out.println(bisnum);
    }

} 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();

        double x = t+0.5;

        int bisnum = ((int)(x / a) * b);

        System.out.println(bisnum);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();

        double x = t+0.5;

        int bisnum = ((int)(x / a) * b);

        System.out.println(bisnum);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int b = sc.nextInt(); b sc.nextInt() sc.nextInt sc int t = sc.nextInt(); t sc.nextInt() sc.nextInt sc double x = t+0.5; x t+0.5 t 0.5 int bisnum = ((int)(x / a) * b); bisnum ((int)(x / a) * b) (int)(x / a) x a b System.out.println(bisnum) System.out.println System.out System System.out bisnum String[] args args 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();

        double x = t+0.5;

        int bisnum = ((int)(x / a) * b);

        System.out.println(bisnum);
    }

} 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();

        double x = t+0.5;

        int bisnum = ((int)(x / a) * b);

        System.out.println(bisnum);
    }

} Main
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();

        double x = t+0.5;

        int bisnum = ((int)(x / a) * b);

        System.out.println(bisnum);
    }

}
