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;
		for (int i = 1; a * i <= t + 0.5; i++) {
			ans += 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;
		for (int i = 1; a * i <= t + 0.5; i++) {
			ans += 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;
		for (int i = 1; a * i <= t + 0.5; i++) {
			ans += 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;
		for (int i = 1; a * i <= t + 0.5; i++) {
			ans += 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 for (int i = 1; a * i <= t + 0.5; i++) {
			ans += b;
		} int i = 1; int i = 1; i 1 a * i <= t + 0.5 a * i a i t + 0.5 t 0.5 i++ i++ i {
			ans += b;
		} {
			ans += b;
		} ans += b ans 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;
		for (int i = 1; a * i <= t + 0.5; i++) {
			ans += 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;
		for (int i = 1; a * i <= t + 0.5; i++) {
			ans += 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 = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		int ans = 0;
		for (int i = 1; a * i <= t + 0.5; i++) {
			ans += b;
		}
		System.out.println(ans);
	}
}