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 times = T/A;
		int ans = 0;
		for(int i = 1; i <= times; 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 times = T/A;
		int ans = 0;
		for(int i = 1; i <= times; 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 times = T/A;
		int ans = 0;
		for(int i = 1; i <= times; 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 times = T/A;
		int ans = 0;
		for(int i = 1; i <= times; 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 times = T/A; times T/A T A int ans = 0; ans 0 for(int i = 1; i <= times; i++){
			ans += B;
		} int i = 1; int i = 1; i 1 i <= times i times 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 times = T/A;
		int ans = 0;
		for(int i = 1; i <= times; 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 times = T/A;
		int ans = 0;
		for(int i = 1; i <= times; 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 times = T/A;
		int ans = 0;
		for(int i = 1; i <= times; i++){
			ans += B;
		}
		
		System.out.println(ans);
	}
}