import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int A = scanner.nextInt();
		int B = scanner.nextInt();
		int T = scanner.nextInt();
		double s = 0;
		int num = 0;
		
		s = (T + 0.5) / A;
		int si = (int)s;
		num = si * B;
		
		System.out.println(num);
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int A = scanner.nextInt();
		int B = scanner.nextInt();
		int T = scanner.nextInt();
		double s = 0;
		int num = 0;
		
		s = (T + 0.5) / A;
		int si = (int)s;
		num = si * B;
		
		System.out.println(num);
	}
} Main public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int A = scanner.nextInt();
		int B = scanner.nextInt();
		int T = scanner.nextInt();
		double s = 0;
		int num = 0;
		
		s = (T + 0.5) / A;
		int si = (int)s;
		num = si * B;
		
		System.out.println(num);
	} main {
		Scanner scanner = new Scanner(System.in);
		int A = scanner.nextInt();
		int B = scanner.nextInt();
		int T = scanner.nextInt();
		double s = 0;
		int num = 0;
		
		s = (T + 0.5) / A;
		int si = (int)s;
		num = si * B;
		
		System.out.println(num);
	} Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) int A = scanner.nextInt(); A scanner.nextInt() scanner.nextInt scanner int B = scanner.nextInt(); B scanner.nextInt() scanner.nextInt scanner int T = scanner.nextInt(); T scanner.nextInt() scanner.nextInt scanner double s = 0; s 0 int num = 0; num 0 s = (T + 0.5) / A s (T + 0.5) / A (T + 0.5) T 0.5 A int si = (int)s; si (int)s num = si * B num si * B si B System.out.println(num) System.out.println System.out System System.out num String[] args args public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int A = scanner.nextInt();
		int B = scanner.nextInt();
		int T = scanner.nextInt();
		double s = 0;
		int num = 0;
		
		s = (T + 0.5) / A;
		int si = (int)s;
		num = si * B;
		
		System.out.println(num);
	}
} public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int A = scanner.nextInt();
		int B = scanner.nextInt();
		int T = scanner.nextInt();
		double s = 0;
		int num = 0;
		
		s = (T + 0.5) / A;
		int si = (int)s;
		num = si * B;
		
		System.out.println(num);
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int A = scanner.nextInt();
		int B = scanner.nextInt();
		int T = scanner.nextInt();
		double s = 0;
		int num = 0;
		
		s = (T + 0.5) / A;
		int si = (int)s;
		num = si * B;
		
		System.out.println(num);
	}
}
