using System;

public class Program

{

    public static void Main()

    {

        TimeSpan t1 = TimeSpan.FromHours(1);

        TimeSpan t2 = TimeSpan.FromHours(2);

        double v = 1800;

        Console.WriteLine(t1.Subtract(t2).Ticks);

        Console.WriteLine(t2.Subtract(t1).TotalSeconds/v);

    }

}