using System;

using System.Text;

public class Program

{

    public static void Main()

    {

        var lastTicks = 0L;

        var result = new StringBuilder();

​

        for (int i = 0; i < 1000; i++)

        {

            var currTicks = DateTime.Now.Ticks;

            if (currTicks == lastTicks)

            {

                result.AppendLine($"[{i,4}] ===");

                break;

            }

            result.AppendLine($"[{i,4}] {currTicks - lastTicks}");

            lastTicks = currTicks;

        }

        Console.WriteLine(result);

    }

}