import java.util.Scanner;

public class Main {
	
	static long[] maxPas = new long[5];
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();
		
		if(T/A > 0) {
			System.out.println(T/A*B);
		} else {
			System.out.println(0);
		}
		
	}

} import java.util.Scanner; Scanner java.util public class Main {
	
	static long[] maxPas = new long[5];
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();
		
		if(T/A > 0) {
			System.out.println(T/A*B);
		} else {
			System.out.println(0);
		}
		
	}

} Main static long[] maxPas = new long[5]; maxPas new long[5] 5 public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();
		
		if(T/A > 0) {
			System.out.println(T/A*B);
		} else {
			System.out.println(0);
		}
		
	} main {
		
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();
		
		if(T/A > 0) {
			System.out.println(T/A*B);
		} else {
			System.out.println(0);
		}
		
	} 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 if(T/A > 0) {
			System.out.println(T/A*B);
		} else {
			System.out.println(0);
		} T/A > 0 T/A T A 0 {
			System.out.println(T/A*B);
		} System.out.println(T/A*B) System.out.println System.out System System.out T/A*B T/A T A B {
			System.out.println(0);
		} System.out.println(0) System.out.println System.out System System.out 0 String[] args args public class Main {
	
	static long[] maxPas = new long[5];
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();
		
		if(T/A > 0) {
			System.out.println(T/A*B);
		} else {
			System.out.println(0);
		}
		
	}

} public class Main {
	
	static long[] maxPas = new long[5];
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();
		
		if(T/A > 0) {
			System.out.println(T/A*B);
		} else {
			System.out.println(0);
		}
		
	}

} Main
import java.util.Scanner;

public class Main {
	
	static long[] maxPas = new long[5];
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int T = sc.nextInt();
		
		if(T/A > 0) {
			System.out.println(T/A*B);
		} else {
			System.out.println(0);
		}
		
	}

}