import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner stdIn = new Scanner(System.in);
		int A = stdIn.nextInt();
		int B = stdIn.nextInt();
		double T = stdIn.nextInt();
		T = T + 0.5;
		
		int c = 0;
		for(; T >= A; T -= A) {
			c += B;
		}
		
		System.out.println(c);

	}

} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		Scanner stdIn = new Scanner(System.in);
		int A = stdIn.nextInt();
		int B = stdIn.nextInt();
		double T = stdIn.nextInt();
		T = T + 0.5;
		
		int c = 0;
		for(; T >= A; T -= A) {
			c += B;
		}
		
		System.out.println(c);

	}

} Main public static void main(String[] args) {
		Scanner stdIn = new Scanner(System.in);
		int A = stdIn.nextInt();
		int B = stdIn.nextInt();
		double T = stdIn.nextInt();
		T = T + 0.5;
		
		int c = 0;
		for(; T >= A; T -= A) {
			c += B;
		}
		
		System.out.println(c);

	} main {
		Scanner stdIn = new Scanner(System.in);
		int A = stdIn.nextInt();
		int B = stdIn.nextInt();
		double T = stdIn.nextInt();
		T = T + 0.5;
		
		int c = 0;
		for(; T >= A; T -= A) {
			c += B;
		}
		
		System.out.println(c);

	} Scanner stdIn = new Scanner(System.in); stdIn new Scanner(System.in) int A = stdIn.nextInt(); A stdIn.nextInt() stdIn.nextInt stdIn int B = stdIn.nextInt(); B stdIn.nextInt() stdIn.nextInt stdIn double T = stdIn.nextInt(); T stdIn.nextInt() stdIn.nextInt stdIn T = T + 0.5 T T + 0.5 T 0.5 int c = 0; c 0 for(; T >= A; T -= A) {
			c += B;
		} ; T >= A T A T -= A T -= A T A {
			c += B;
		} {
			c += B;
		} c += B c B System.out.println(c) System.out.println System.out System System.out c String[] args args public class Main {

	public static void main(String[] args) {
		Scanner stdIn = new Scanner(System.in);
		int A = stdIn.nextInt();
		int B = stdIn.nextInt();
		double T = stdIn.nextInt();
		T = T + 0.5;
		
		int c = 0;
		for(; T >= A; T -= A) {
			c += B;
		}
		
		System.out.println(c);

	}

} public class Main {

	public static void main(String[] args) {
		Scanner stdIn = new Scanner(System.in);
		int A = stdIn.nextInt();
		int B = stdIn.nextInt();
		double T = stdIn.nextInt();
		T = T + 0.5;
		
		int c = 0;
		for(; T >= A; T -= A) {
			c += B;
		}
		
		System.out.println(c);

	}

} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner stdIn = new Scanner(System.in);
		int A = stdIn.nextInt();
		int B = stdIn.nextInt();
		double T = stdIn.nextInt();
		T = T + 0.5;
		
		int c = 0;
		for(; T >= A; T -= A) {
			c += B;
		}
		
		System.out.println(c);

	}

}