View Code of Problem 64

import java.util.Scanner;
public class Main{
 public static void main(String args[]) {
   int k, L, n;
   Scanner sc=new Scanner(System.in);
   n=sc.nextInt();
   k=sc.nextInt();
   L=sc.nextInt();
   for (int i = 1; i <= n; i++) 
   {
     if (2 * k - k / 2 > L){	
       break;
     }
     else
     {
       k = 2 * k - k / 2;
     }
   }
   System.out.println(k);
 }
}