using System;

public class Program

{

    public static void Main()

    {

        int n,remainder,sum = 0;

        Console.WriteLine("enter the number");

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

        for(int i = n;i > 0;i = i / 10)

        {

            remainder = i % 10;

            sum = sum + remainder * remainder * remainder;

        }

        if(sum == n)

        {

            Console.WriteLine("it is a amstrong number");

        }

        else

        {

            Console.WriteLine("it is not a armstrong number");

        }

}

​

}