Transport Price

using System;

class TransportPrice
{
    static void Main(string[] args)
    {
        double km = double.Parse(Console.ReadLine());
        string time =Console.ReadLine();
        double taxiStartRate = 0.70;
        double taxiDayRate = 0.79;
        double taxiNigthRate = 0.90;
        double allRate = 0;

        double busDayRate = 0.09;
        //double busNigthRate = 0.09;

        double trainDayRate = 0.06;
        //double trainNigthRate = 0.06;

        if (km<20 && time=="day")
        {
            allRate = taxiStartRate + taxiDayRate * km;
        }
        else if (km < 20 && time == "night")
        {
            allRate = taxiStartRate + taxiNigthRate * km;
        }
        else if (km >= 20 && km<100 && (time == "day" || time == "night"))
        {
            allRate = busDayRate * km;
        }
        else if (km >= 100 && (time == "day" || time == "night"))
        {
            allRate = trainDayRate * km;
        }
        Console.WriteLine(allRate);

    }
}