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();
		float T = sc.nextFloat()+0.5f;
		int res = 0;

		while(A<=T) {
			res+=B;
			T -= A;
		}
		System.out.println(res);


	}

} 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();
		float T = sc.nextFloat()+0.5f;
		int res = 0;

		while(A<=T) {
			res+=B;
			T -= A;
		}
		System.out.println(res);


	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		float T = sc.nextFloat()+0.5f;
		int res = 0;

		while(A<=T) {
			res+=B;
			T -= A;
		}
		System.out.println(res);


	} main {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		float T = sc.nextFloat()+0.5f;
		int res = 0;

		while(A<=T) {
			res+=B;
			T -= A;
		}
		System.out.println(res);


	} 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 float T = sc.nextFloat()+0.5f; T sc.nextFloat()+0.5f sc.nextFloat() sc.nextFloat sc 0.5f int res = 0; res 0 while(A<=T) {
			res+=B;
			T -= A;
		} A<=T A T {
			res+=B;
			T -= A;
		} res+=B res B T -= A T A System.out.println(res) System.out.println System.out System System.out res 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();
		float T = sc.nextFloat()+0.5f;
		int res = 0;

		while(A<=T) {
			res+=B;
			T -= A;
		}
		System.out.println(res);


	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		float T = sc.nextFloat()+0.5f;
		int res = 0;

		while(A<=T) {
			res+=B;
			T -= A;
		}
		System.out.println(res);


	}

} 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();
		float T = sc.nextFloat()+0.5f;
		int res = 0;

		while(A<=T) {
			res+=B;
			T -= A;
		}
		System.out.println(res);


	}

}