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();

		sc.close();

		int answer = 0;

		for(int i = A ; i < T + 0.5 ;i += A) {
			answer += B;
		}

		System.out.println(answer);
	}

} 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();

		sc.close();

		int answer = 0;

		for(int i = A ; i < T + 0.5 ;i += A) {
			answer += B;
		}

		System.out.println(answer);
	}

} 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();

		sc.close();

		int answer = 0;

		for(int i = A ; i < T + 0.5 ;i += A) {
			answer += B;
		}

		System.out.println(answer);
	} main {

		Scanner sc = new Scanner(System.in);

		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();

		sc.close();

		int answer = 0;

		for(int i = A ; i < T + 0.5 ;i += A) {
			answer += B;
		}

		System.out.println(answer);
	} 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 sc.close() sc.close sc int answer = 0; answer 0 for(int i = A ; i < T + 0.5 ;i += A) {
			answer += B;
		} int i = A ; int i = A ; i A i < T + 0.5 i T + 0.5 T 0.5 i += A i += A i A {
			answer += B;
		} {
			answer += B;
		} answer += B answer B System.out.println(answer) System.out.println System.out System System.out answer 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();

		sc.close();

		int answer = 0;

		for(int i = A ; i < T + 0.5 ;i += A) {
			answer += B;
		}

		System.out.println(answer);
	}

} 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();

		sc.close();

		int answer = 0;

		for(int i = A ; i < T + 0.5 ;i += A) {
			answer += B;
		}

		System.out.println(answer);
	}

} 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();

		sc.close();

		int answer = 0;

		for(int i = A ; i < T + 0.5 ;i += A) {
			answer += B;
		}

		System.out.println(answer);
	}

}
