import 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();

        System.out.println(t < a ? 0 : b * (t / a));
    }
} import java.util.*; util.* java 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();

        System.out.println(t < a ? 0 : b * (t / a));
    }
} 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();

        System.out.println(t < a ? 0 : b * (t / a));
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();

        System.out.println(t < a ? 0 : b * (t / a));
    } 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 System.out.println(t < a ? 0 : b * (t / a)) System.out.println System.out System System.out t < a ? 0 : b * (t / a) t < a t a 0 b * (t / a) b (t / a) t a 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();

        System.out.println(t < a ? 0 : b * (t / a));
    }
} 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();

        System.out.println(t < a ? 0 : b * (t / a));
    }
} Main
import 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();

        System.out.println(t < a ? 0 : b * (t / a));
    }
}