import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner stdIn = new Scanner(System.in);
        int A = stdIn.nextInt();
        int B = stdIn.nextInt();
        int T = stdIn.nextInt();
        int sum = 0;
        for (int time = A; time < T + 0.5; time += A) {
            sum += B;
        }
        System.out.println(sum);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) {
        Scanner stdIn = new Scanner(System.in);
        int A = stdIn.nextInt();
        int B = stdIn.nextInt();
        int T = stdIn.nextInt();
        int sum = 0;
        for (int time = A; time < T + 0.5; time += A) {
            sum += B;
        }
        System.out.println(sum);
    }
} Main public static void main(String[] args) {
        Scanner stdIn = new Scanner(System.in);
        int A = stdIn.nextInt();
        int B = stdIn.nextInt();
        int T = stdIn.nextInt();
        int sum = 0;
        for (int time = A; time < T + 0.5; time += A) {
            sum += B;
        }
        System.out.println(sum);
    } main {
        Scanner stdIn = new Scanner(System.in);
        int A = stdIn.nextInt();
        int B = stdIn.nextInt();
        int T = stdIn.nextInt();
        int sum = 0;
        for (int time = A; time < T + 0.5; time += A) {
            sum += B;
        }
        System.out.println(sum);
    } Scanner stdIn = new Scanner(System.in); stdIn new Scanner(System.in) int A = stdIn.nextInt(); A stdIn.nextInt() stdIn.nextInt stdIn int B = stdIn.nextInt(); B stdIn.nextInt() stdIn.nextInt stdIn int T = stdIn.nextInt(); T stdIn.nextInt() stdIn.nextInt stdIn int sum = 0; sum 0 for (int time = A; time < T + 0.5; time += A) {
            sum += B;
        } int time = A; int time = A; time A time < T + 0.5 time T + 0.5 T 0.5 time += A time += A time A {
            sum += B;
        } {
            sum += B;
        } sum += B sum B System.out.println(sum) System.out.println System.out System System.out sum String[] args args public class Main {
    public static void main(String[] args) {
        Scanner stdIn = new Scanner(System.in);
        int A = stdIn.nextInt();
        int B = stdIn.nextInt();
        int T = stdIn.nextInt();
        int sum = 0;
        for (int time = A; time < T + 0.5; time += A) {
            sum += B;
        }
        System.out.println(sum);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner stdIn = new Scanner(System.in);
        int A = stdIn.nextInt();
        int B = stdIn.nextInt();
        int T = stdIn.nextInt();
        int sum = 0;
        for (int time = A; time < T + 0.5; time += A) {
            sum += B;
        }
        System.out.println(sum);
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner stdIn = new Scanner(System.in);
        int A = stdIn.nextInt();
        int B = stdIn.nextInt();
        int T = stdIn.nextInt();
        int sum = 0;
        for (int time = A; time < T + 0.5; time += A) {
            sum += B;
        }
        System.out.println(sum);
    }
}