static void Main(string[] args)
        {
            // long timeBefore = System.Environment.TickCount;
            Program p = new Program();

            // p.Rsafinishsample();
            //    long timeAfter = System.Environment.TickCount;
            //  Console.WriteLine(timeAfter - timeBefore);
            Console.WriteLine("before modification");
            long timeBefore = System.Environment.TickCount;

            p.Rsafinishcomplete();
            long timeAfter = System.Environment.TickCount;

            long timeequal = timeAfter - timeBefore;

            timeequal /= 6000;
            Console.WriteLine(timeequal);
        }