import java.util.Scanner;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String[] list = sc.nextLine().split(" ",0);
		int A = Integer.parseInt(list[0]);
		int B = Integer.parseInt(list[1]);
		int T = Integer.parseInt(list[2]);

		System.out.println(B*(T/A));
		sc.close();
	}

} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String[] list = sc.nextLine().split(" ",0);
		int A = Integer.parseInt(list[0]);
		int B = Integer.parseInt(list[1]);
		int T = Integer.parseInt(list[2]);

		System.out.println(B*(T/A));
		sc.close();
	}

} Main public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String[] list = sc.nextLine().split(" ",0);
		int A = Integer.parseInt(list[0]);
		int B = Integer.parseInt(list[1]);
		int T = Integer.parseInt(list[2]);

		System.out.println(B*(T/A));
		sc.close();
	} main {
		Scanner sc = new Scanner(System.in);
		String[] list = sc.nextLine().split(" ",0);
		int A = Integer.parseInt(list[0]);
		int B = Integer.parseInt(list[1]);
		int T = Integer.parseInt(list[2]);

		System.out.println(B*(T/A));
		sc.close();
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String[] list = sc.nextLine().split(" ",0); list sc.nextLine().split(" ",0) sc.nextLine().split sc.nextLine() sc.nextLine sc " " 0 int A = Integer.parseInt(list[0]); A Integer.parseInt(list[0]) Integer.parseInt Integer list[0] list 0 int B = Integer.parseInt(list[1]); B Integer.parseInt(list[1]) Integer.parseInt Integer list[1] list 1 int T = Integer.parseInt(list[2]); T Integer.parseInt(list[2]) Integer.parseInt Integer list[2] list 2 System.out.println(B*(T/A)) System.out.println System.out System System.out B*(T/A) B (T/A) T A sc.close() sc.close sc String[] args args public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String[] list = sc.nextLine().split(" ",0);
		int A = Integer.parseInt(list[0]);
		int B = Integer.parseInt(list[1]);
		int T = Integer.parseInt(list[2]);

		System.out.println(B*(T/A));
		sc.close();
	}

} public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String[] list = sc.nextLine().split(" ",0);
		int A = Integer.parseInt(list[0]);
		int B = Integer.parseInt(list[1]);
		int T = Integer.parseInt(list[2]);

		System.out.println(B*(T/A));
		sc.close();
	}

} Main
import java.util.Scanner;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String[] list = sc.nextLine().split(" ",0);
		int A = Integer.parseInt(list[0]);
		int B = Integer.parseInt(list[1]);
		int T = Integer.parseInt(list[2]);

		System.out.println(B*(T/A));
		sc.close();
	}

}