import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        final Scanner sc = new Scanner(System.in);

        final int a = sc.nextInt();
        final int b = sc.nextInt();
        final int t = sc.nextInt();

        System.out.println((int)Math.floor((t+0.5) / a) * b);
    }
} import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {
        final Scanner sc = new Scanner(System.in);

        final int a = sc.nextInt();
        final int b = sc.nextInt();
        final int t = sc.nextInt();

        System.out.println((int)Math.floor((t+0.5) / a) * b);
    }
} Main public static void main(String[] args) {
        final Scanner sc = new Scanner(System.in);

        final int a = sc.nextInt();
        final int b = sc.nextInt();
        final int t = sc.nextInt();

        System.out.println((int)Math.floor((t+0.5) / a) * b);
    } main {
        final Scanner sc = new Scanner(System.in);

        final int a = sc.nextInt();
        final int b = sc.nextInt();
        final int t = sc.nextInt();

        System.out.println((int)Math.floor((t+0.5) / a) * b);
    } final Scanner sc = new Scanner(System.in); sc new Scanner(System.in) final int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc final int b = sc.nextInt(); b sc.nextInt() sc.nextInt sc final int t = sc.nextInt(); t sc.nextInt() sc.nextInt sc System.out.println((int)Math.floor((t+0.5) / a) * b) System.out.println System.out System System.out (int)Math.floor((t+0.5) / a) * b (int)Math.floor((t+0.5) / a) Math.floor Math (t+0.5) / a (t+0.5) t 0.5 a b String[] args args public class Main {

    public static void main(String[] args) {
        final Scanner sc = new Scanner(System.in);

        final int a = sc.nextInt();
        final int b = sc.nextInt();
        final int t = sc.nextInt();

        System.out.println((int)Math.floor((t+0.5) / a) * b);
    }
} public class Main {

    public static void main(String[] args) {
        final Scanner sc = new Scanner(System.in);

        final int a = sc.nextInt();
        final int b = sc.nextInt();
        final int t = sc.nextInt();

        System.out.println((int)Math.floor((t+0.5) / a) * b);
    }
} Main
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        final Scanner sc = new Scanner(System.in);

        final int a = sc.nextInt();
        final int b = sc.nextInt();
        final int t = sc.nextInt();

        System.out.println((int)Math.floor((t+0.5) / a) * b);
    }
}
