_1_Electricity

using System;

class Electricity
{
    static void Main()
    {
        int floors = int.Parse(Console.ReadLine());
        int flats = int.Parse(Console.ReadLine());
        string timeString = Console.ReadLine();
        int flatsInDorms = floors * flats;
        double compConsumption = 100.53;
        double lampConsumption = 125.90;
        double totalConsumption = 0;
        DateTime t1start = DateTime.Parse("2012/12/12 14:00:00.000");
        DateTime t1end = DateTime.Parse("2012/12/12 18:59:00.000");
        DateTime t2start = DateTime.Parse("2012/12/12 19:00:00.000");
        DateTime t2end = DateTime.Parse("2012/12/12 23:59:00.000");
        DateTime t3start = DateTime.Parse("2012/12/12 00:00:00.000");
        DateTime t3end = DateTime.Parse("2012/12/12 08:59:00.000");
        DateTime time = DateTime.Parse(timeString, System.Globalization.CultureInfo.CurrentCulture);
        if (time.TimeOfDay > t1start.TimeOfDay && time.TimeOfDay < t1end.TimeOfDay)
        {
            totalConsumption = (compConsumption * 2 + lampConsumption * 2) * flatsInDorms;
        }
        else if (time.TimeOfDay > t2start.TimeOfDay && time.TimeOfDay < t2end.TimeOfDay)
        {
            totalConsumption = (compConsumption * 7 + lampConsumption * 6) * flatsInDorms;
        }
        else if (time.TimeOfDay > t3start.TimeOfDay && time.TimeOfDay < t3end.TimeOfDay)
        {
            totalConsumption = (int)(compConsumption * 8 + lampConsumption) * flatsInDorms;
        }
        else
        {
            totalConsumption = 0;
        }
        Console.WriteLine("{0} Watts", Math.Floor(totalConsumption));
    }
}