using System;

public class Program

{

    public static void Main()

    {

         int num, sum = 0, r;

            Console.WriteLine("Enter a Number : ");

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

            while (num != 0)

            {

                r = num % 10;

                num = num / 10;

                sum = sum + r;

            }

            Console.WriteLine("Result : " + sum);

            Console.ReadLine();

    }

}