//Atcoder 125 A - Biscuit Generator
import java.util.Scanner;
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();
		int ans = 0;
		ans = (t/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 = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		int ans = 0;
		ans = (t/a) * b;

		System.out.println(ans);

	}

} 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();
		int ans = 0;
		ans = (t/a) * b;

		System.out.println(ans);

	} main {
		Scanner sc = new Scanner(System.in);

		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		int ans = 0;
		ans = (t/a) * b;

		System.out.println(ans);

	} 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 int ans = 0; ans 0 ans = (t/a) * b ans (t/a) * b (t/a) t 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 = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		int ans = 0;
		ans = (t/a) * b;

		System.out.println(ans);

	}

} 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();
		int ans = 0;
		ans = (t/a) * b;

		System.out.println(ans);

	}

} Main
//Atcoder 125 A - Biscuit Generator
import java.util.Scanner;
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();
		int ans = 0;
		ans = (t/a) * b;

		System.out.println(ans);

	}

}
