01_Electricity

using System;

class Electricity
{
    static void Main()
    {
        int floors = int.Parse(Console.ReadLine());
        int flats = int.Parse(Console.ReadLine());
        string dateTime = Console.ReadLine();
        string[] hoursAndMinutes = dateTime.Split(':');
        decimal lampConsumption = 100.53m;
        decimal computerConsumption = 125.90m;
        decimal totalConsumption = 0;

        if (int.Parse(hoursAndMinutes[0]) >= 14 && int.Parse(hoursAndMinutes[0]) < 19)
        {
            totalConsumption = floors * flats * (2 * lampConsumption + 2 * computerConsumption);
        }
        else if (int.Parse(hoursAndMinutes[0]) >= 19 && int.Parse(hoursAndMinutes[0]) < 24)
        {
            totalConsumption = floors * flats * (7 * lampConsumption + 6 * computerConsumption);
        }
        else if (int.Parse(hoursAndMinutes[0]) >= 0 && int.Parse(hoursAndMinutes[0]) < 9)
        {
            totalConsumption = floors * flats * (lampConsumption + 8 * computerConsumption);
        }
        Console.WriteLine(Math.Truncate(totalConsumption) + " Watts");
    }
}