import java.util.*;
import java.lang.*;

public class Main {
	static long mod = 998244353;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		System.out.println(t / a * b);
	}
} import java.util.*; util.* java import java.lang.*; lang.* java public class Main {
	static long mod = 998244353;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		System.out.println(t / a * b);
	}
} Main static long mod = 998244353; mod 998244353 public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		System.out.println(t / a * b);
	} main {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		System.out.println(t / a * b);
	} 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 System.out.println(t / a * b) System.out.println System.out System System.out t / a * b t / a t a b String[] args args public class Main {
	static long mod = 998244353;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		System.out.println(t / a * b);
	}
} public class Main {
	static long mod = 998244353;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		System.out.println(t / a * b);
	}
} Main
import java.util.*;
import java.lang.*;

public class Main {
	static long mod = 998244353;
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		System.out.println(t / a * b);
	}
}