using System;

using System.Threading;

public class Program

{

    public static void Main()

    {

        const double targetFps = 1;

        const long targetFpsTime = (long) ((1.0 / targetFps) * 1000);

        var appTimeoutTime = CurrentUnixTime + 3000;

        while(CurrentUnixTime < appTimeoutTime) {

            long startTimer = CurrentUnixTime;

            Console.WriteLine("Test");

            long endTimer = CurrentUnixTime - startTimer;

            if (endTimer < targetFpsTime) {

                Thread.Sleep((int) (targetFpsTime - endTimer));

            }

        }

    }

    public static long CurrentUnixTime {

        get {

            DateTime nowDateTime = DateTime.UtcNow;

            return ((DateTimeOffset)nowDateTime).ToUnixTimeMilliseconds();

        }

    }

}