import 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; i < T + 0.5; i++) {
			if (i % A == 0) {
				ans += B;
			}
		}
		
		System.out.println(ans);
		sc.close();
	}

} import java.util.*; util.* java 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; i < T + 0.5; i++) {
			if (i % A == 0) {
				ans += B;
			}
		}
		
		System.out.println(ans);
		sc.close();
	}

} 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; i < T + 0.5; i++) {
			if (i % A == 0) {
				ans += B;
			}
		}
		
		System.out.println(ans);
		sc.close();
	} 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; i < T + 0.5; i++) {
			if (i % A == 0) {
				ans += B;
			}
		}
		
		System.out.println(ans);
		sc.close();
	} 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; i < T + 0.5; i++) {
			if (i % A == 0) {
				ans += B;
			}
		} int i = 1; int i = 1; i 1 i < T + 0.5 i T + 0.5 T 0.5 i++ i++ i {
			if (i % A == 0) {
				ans += B;
			}
		} {
			if (i % A == 0) {
				ans += B;
			}
		} if (i % A == 0) {
				ans += B;
			} i % A == 0 i % A i A 0 {
				ans += B;
			} ans += B ans B System.out.println(ans) System.out.println System.out System System.out ans sc.close() sc.close sc 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; i < T + 0.5; i++) {
			if (i % A == 0) {
				ans += B;
			}
		}
		
		System.out.println(ans);
		sc.close();
	}

} 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; i < T + 0.5; i++) {
			if (i % A == 0) {
				ans += B;
			}
		}
		
		System.out.println(ans);
		sc.close();
	}

} Main
import 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; i < T + 0.5; i++) {
			if (i % A == 0) {
				ans += B;
			}
		}
		
		System.out.println(ans);
		sc.close();
	}

}
