using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
//Petla do while(), suma wczytanych elementow.

namespace ConsoleApplication6
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.Write("Podawaj x. Gdy podasz zero nastapi koniec programu.");
            int x, suma = 0;
            do
            {
                x = int.Parse(Console.ReadLine());
                suma = suma + x;
            } while (x != 0);

            Console.WriteLine("\nSuma liczb wynosi: " + suma + "\n\n");

            Console.ReadKey();
        }
    }
}