Electricity

using System;
namespace Electricity
{
    class Electricity
    {
        static void Main()
        {
            int numOfFloors = int.Parse(Console.ReadLine());
            int numOfFlats = int.Parse(Console.ReadLine());

            string time = Console.ReadLine();
            string[] arrTime = time.Split(':');

            int hours = int.Parse(arrTime[0]);
            int minutes = int.Parse(arrTime[1]);

            double totalPowerConsummation = 0;

            if (hours >= 14 && hours <= 18)
            {
                totalPowerConsummation = numOfFlats*numOfFloors*(125.90d + 100.53d)*2;
            }
            if (hours >= 19 && hours <= 23)
            {
                totalPowerConsummation = numOfFlats * numOfFloors * (6*125.90d + 7*100.53d);
            }
            if (hours >= 0 && hours <= 8)
            {
                totalPowerConsummation = numOfFlats * numOfFloors * (8 * 125.90d + 1 * 100.53d);
            }
            Console.WriteLine("{0} Watts", (int)totalPowerConsummation);
        }
    }
}