import java.util.*;

public class Main {
	public static void main(String[] args) {  
  		Scanner sc = new Scanner(System.in);
		int start = sc.nextInt();
      	int addNum = sc.nextInt();
      	int end = sc.nextInt();
		int total = 0;
      	for(int i = start; i <= end; i += start) {
        	total += addNum;  
        }
      	System.out.println(total);
    }
} import java.util.*; util.* java public class Main {
	public static void main(String[] args) {  
  		Scanner sc = new Scanner(System.in);
		int start = sc.nextInt();
      	int addNum = sc.nextInt();
      	int end = sc.nextInt();
		int total = 0;
      	for(int i = start; i <= end; i += start) {
        	total += addNum;  
        }
      	System.out.println(total);
    }
} Main public static void main(String[] args) {  
  		Scanner sc = new Scanner(System.in);
		int start = sc.nextInt();
      	int addNum = sc.nextInt();
      	int end = sc.nextInt();
		int total = 0;
      	for(int i = start; i <= end; i += start) {
        	total += addNum;  
        }
      	System.out.println(total);
    } main {  
  		Scanner sc = new Scanner(System.in);
		int start = sc.nextInt();
      	int addNum = sc.nextInt();
      	int end = sc.nextInt();
		int total = 0;
      	for(int i = start; i <= end; i += start) {
        	total += addNum;  
        }
      	System.out.println(total);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int start = sc.nextInt(); start sc.nextInt() sc.nextInt sc int addNum = sc.nextInt(); addNum sc.nextInt() sc.nextInt sc int end = sc.nextInt(); end sc.nextInt() sc.nextInt sc int total = 0; total 0 for(int i = start; i <= end; i += start) {
        	total += addNum;  
        } int i = start; int i = start; i start i <= end i end i += start i += start i start {
        	total += addNum;  
        } {
        	total += addNum;  
        } total += addNum total addNum System.out.println(total) System.out.println System.out System System.out total String[] args args public class Main {
	public static void main(String[] args) {  
  		Scanner sc = new Scanner(System.in);
		int start = sc.nextInt();
      	int addNum = sc.nextInt();
      	int end = sc.nextInt();
		int total = 0;
      	for(int i = start; i <= end; i += start) {
        	total += addNum;  
        }
      	System.out.println(total);
    }
} public class Main {
	public static void main(String[] args) {  
  		Scanner sc = new Scanner(System.in);
		int start = sc.nextInt();
      	int addNum = sc.nextInt();
      	int end = sc.nextInt();
		int total = 0;
      	for(int i = start; i <= end; i += start) {
        	total += addNum;  
        }
      	System.out.println(total);
    }
} Main
import java.util.*;

public class Main {
	public static void main(String[] args) {  
  		Scanner sc = new Scanner(System.in);
		int start = sc.nextInt();
      	int addNum = sc.nextInt();
      	int end = sc.nextInt();
		int total = 0;
      	for(int i = start; i <= end; i += start) {
        	total += addNum;  
        }
      	System.out.println(total);
    }
}