import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = Integer.parseInt(sc.next());
		int b = Integer.parseInt(sc.next());
		int t = Integer.parseInt(sc.next());

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

} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = Integer.parseInt(sc.next());
		int b = Integer.parseInt(sc.next());
		int t = Integer.parseInt(sc.next());

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

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = Integer.parseInt(sc.next());
		int b = Integer.parseInt(sc.next());
		int t = Integer.parseInt(sc.next());

		int ans = (int) ((t + 0.5) / a) * b;
		System.out.println(ans);
	} main {
		Scanner sc = new Scanner(System.in);
		int a = Integer.parseInt(sc.next());
		int b = Integer.parseInt(sc.next());
		int t = Integer.parseInt(sc.next());

		int ans = (int) ((t + 0.5) / a) * b;
		System.out.println(ans);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = Integer.parseInt(sc.next()); a Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int b = Integer.parseInt(sc.next()); b Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int t = Integer.parseInt(sc.next()); t Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int ans = (int) ((t + 0.5) / a) * b; ans (int) ((t + 0.5) / a) * b (int) ((t + 0.5) / a) (t + 0.5) t 0.5 a b System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = Integer.parseInt(sc.next());
		int b = Integer.parseInt(sc.next());
		int t = Integer.parseInt(sc.next());

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

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = Integer.parseInt(sc.next());
		int b = Integer.parseInt(sc.next());
		int t = Integer.parseInt(sc.next());

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

} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = Integer.parseInt(sc.next());
		int b = Integer.parseInt(sc.next());
		int t = Integer.parseInt(sc.next());

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

}
