/*
 * C# Program to Find Sum of Digits of a Number using Recursion
 */
using System;
class program
{
    public static void Main()
    {
        int num, result;
        pro pg = new pro();
        Console.WriteLine("Enter the Number : ");
        num=int.Parse(Console.ReadLine());
        result =pg.sum(num);
        Console.WriteLine("Sum of Digits in {0} is {1}", num, result);
        Console.ReadLine();
    }
}
class pro
{
    public int sum(int num)
    {
        if (num != 0)
            {
                return (num % 10 + sum(num / 10));
            }
        else
            {
                return 0;
            }
    }
}

/*
Enter the Number :
234
Sum of Digits in 234 is 9