do while

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

namespace HELLOWORLD
{
    class Program
    {
        static void Main(string[] args)
        {
            int raz = 0;

            do
            {
                Console.WriteLine(raz);
                raz = raz + 1;

            }
            while (raz < -1);
            Console.ReadLine();


        }
    }
}