using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("enter input number ");

        int input = int.Parse(Console.ReadLine());

        int result=0;

        int temp= input;

        while(temp > 0)

        {

            int rem = temp % 10;

            result = result + rem*rem*rem;

            temp= temp / 10;

        }

        if(input == result)

        {

            Console.WriteLine("{0} is armstrong number", input);

        }

        else

        {

            Console.WriteLine("{0} is not armstrong number", input);

        }

    }

}