SumingNumbers

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SumNumbers
{
    class SumNumbers
    {
        static void Main(string[] args)
        {
            int number = int.Parse(Console.ReadLine());
            var sum = 0;

            while(number != 0)
            {
                sum += number % 10;
                number /= 10;
            }
            Console.WriteLine(sum);

            /*5634 % 10 = 4;
            5634 / 10 = 563;
            563 % 10 = 3;
            563 / 10 = 56;
            56 % 10 = 6;
            56 / 10 = 5;
            5 % 10 = 5;
            5 / 10 = 0;*/
        }
    }
}