import java.util.*;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		int i = 1;
		int sum = 0;
		while(a * i <= t){
			sum += b;
			i += 1;
		}
		System.out.println(sum);
	}
} import java.util.*; util.* java class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		int i = 1;
		int sum = 0;
		while(a * i <= t){
			sum += b;
			i += 1;
		}
		System.out.println(sum);
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		int i = 1;
		int sum = 0;
		while(a * i <= t){
			sum += b;
			i += 1;
		}
		System.out.println(sum);
	} main {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		int i = 1;
		int sum = 0;
		while(a * i <= t){
			sum += b;
			i += 1;
		}
		System.out.println(sum);
	} 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 int i = 1; i 1 int sum = 0; sum 0 while(a * i <= t){
			sum += b;
			i += 1;
		} a * i <= t a * i a i t {
			sum += b;
			i += 1;
		} sum += b sum b i += 1 i 1 System.out.println(sum) System.out.println System.out System System.out sum String[] args args
import java.util.*;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int t = sc.nextInt();
		int i = 1;
		int sum = 0;
		while(a * i <= t){
			sum += b;
			i += 1;
		}
		System.out.println(sum);
	}
}