задача 10

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

namespace InputExit_zad10
{
    class InputZad10
    {
        static void Main(string[] args)
        {
            Console.Write("enter nomber : ");
            int a = int.Parse(Console.ReadLine());
            int sum;
            Console.WriteLine("Do you want to enter a new number.");
            Console.Write("If you want, press '1', if not-another number :");
            int choice = int.Parse(Console.ReadLine());


                while (choice == 1)
                {
                    Console.Write("enter nomber: ");
                    int b = int.Parse(Console.ReadLine());
                    a += b;
                    sum = a;
                    Console.WriteLine();
                    Console.WriteLine("sum = " + sum);
                    Console.WriteLine();
                    Console.WriteLine("Do you want to enter a new number.");
                    Console.Write("If you want, press '1', if not-another number :");
                    choice = int.Parse(Console.ReadLine());
                }
                sum = a;
                Console.WriteLine("sum =" + sum);
        }
    }
}