using System;

public class Program

{

    public static void Main()

    {

    Console.Write(" Enter the number : ");

    int num = Convert.ToInt32(Console.ReadLine()); 

    Console.Write(" The digits in the number are : ");

    numberDigits(num);

    Console.Write(" ");

    }

​

    static void numberDigits(int num)

    {

        if (num < 10)

        {

            Console.Write("{0}  ", num);

            return;

        }

        numberDigits(num / 10);

        Console.Write(" {0} ", num % 10);

    }

}

​