import java.util.Scanner;

public class Main {

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

        int a = Integer.parseInt(s.next());
        int b = Integer.parseInt(s.next());
        int t = Integer.parseInt(s.next());

        int num = 0;
        int c = 1;
        int time = a;

        while (time < t + 0.5) {
            num += b;
            time += a;
            c++;
        }

        System.out.println(num);
    }
} import java.util.Scanner; Scanner java.util public class Main {

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

        int a = Integer.parseInt(s.next());
        int b = Integer.parseInt(s.next());
        int t = Integer.parseInt(s.next());

        int num = 0;
        int c = 1;
        int time = a;

        while (time < t + 0.5) {
            num += b;
            time += a;
            c++;
        }

        System.out.println(num);
    }
} Main public static void main(String[] args) {
        Scanner s = new Scanner(System.in);

        int a = Integer.parseInt(s.next());
        int b = Integer.parseInt(s.next());
        int t = Integer.parseInt(s.next());

        int num = 0;
        int c = 1;
        int time = a;

        while (time < t + 0.5) {
            num += b;
            time += a;
            c++;
        }

        System.out.println(num);
    } main {
        Scanner s = new Scanner(System.in);

        int a = Integer.parseInt(s.next());
        int b = Integer.parseInt(s.next());
        int t = Integer.parseInt(s.next());

        int num = 0;
        int c = 1;
        int time = a;

        while (time < t + 0.5) {
            num += b;
            time += a;
            c++;
        }

        System.out.println(num);
    } Scanner s = new Scanner(System.in); s new Scanner(System.in) int a = Integer.parseInt(s.next()); a Integer.parseInt(s.next()) Integer.parseInt Integer s.next() s.next s int b = Integer.parseInt(s.next()); b Integer.parseInt(s.next()) Integer.parseInt Integer s.next() s.next s int t = Integer.parseInt(s.next()); t Integer.parseInt(s.next()) Integer.parseInt Integer s.next() s.next s int num = 0; num 0 int c = 1; c 1 int time = a; time a while (time < t + 0.5) {
            num += b;
            time += a;
            c++;
        } time < t + 0.5 time t + 0.5 t 0.5 {
            num += b;
            time += a;
            c++;
        } num += b num b time += a time a c++ c System.out.println(num) System.out.println System.out System System.out num String[] args args public class Main {

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

        int a = Integer.parseInt(s.next());
        int b = Integer.parseInt(s.next());
        int t = Integer.parseInt(s.next());

        int num = 0;
        int c = 1;
        int time = a;

        while (time < t + 0.5) {
            num += b;
            time += a;
            c++;
        }

        System.out.println(num);
    }
} public class Main {

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

        int a = Integer.parseInt(s.next());
        int b = Integer.parseInt(s.next());
        int t = Integer.parseInt(s.next());

        int num = 0;
        int c = 1;
        int time = a;

        while (time < t + 0.5) {
            num += b;
            time += a;
            c++;
        }

        System.out.println(num);
    }
} Main
import java.util.Scanner;

public class Main {

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

        int a = Integer.parseInt(s.next());
        int b = Integer.parseInt(s.next());
        int t = Integer.parseInt(s.next());

        int num = 0;
        int c = 1;
        int time = a;

        while (time < t + 0.5) {
            num += b;
            time += a;
            c++;
        }

        System.out.println(num);
    }
}