import java.util.*;
class ArmstrongNumber
{
   public static void main(String args[])
   {
      int n, sum = 0, temp, r;
      n =Integer.parseInt(args[0]);  
        temp = n;
       while( temp != 0 ) 
       {
         r = temp%10;
         sum = sum + r*r*r;
         temp = temp/10; 
       }
       if ( n == sum )
         System.out.println("Entered number is an Armstrong number.");
      else
         System.out.println ("Entered number is not an Armstrong number.");         
   }
}