04.Hotel

using System;

namespace Hotel
{
    class Hotel
    {
        static void Main(string[] args)
        {
            string month = Console.ReadLine().ToLower();
            int nightsCount = int.Parse(Console.ReadLine());

            double studioDiscount = 0.0;
            double doubleDiscount = 0.0;
            double suiteDiscount = 0.0;
            int studioPrice = 0;
            int doublePrice = 0;
            int suitePrice = 0;

            switch (month)
            {
                case "may": case "october":
                    studioPrice = 50;
                    doublePrice = 65;
                    suitePrice = 75;
                    if(nightsCount > 7)
                    {
                        studioDiscount = 0.05;
                    }
                    break;

                case "june": case "september":
                    studioPrice = 60;
                    doublePrice = 72;
                    suitePrice = 82;
                    if (nightsCount > 14)
                    {
                        doubleDiscount = 0.10;
                    }
                    break;

                case "july": case "august": case "december":
                    studioPrice = 68;
                    doublePrice = 77;
                    suitePrice = 89;
                    if (nightsCount > 14)
                    {
                        suiteDiscount = 0.15;
                    }
                    break;
            }

            var calcStudioPrice = (nightsCount * studioPrice) - ((nightsCount * studioPrice) * studioDiscount);
            var calcDoublePrice = (nightsCount * doublePrice) - ((nightsCount * doublePrice) * doubleDiscount);
            var calcSuitePrice = (nightsCount * suitePrice) - ((nightsCount * suitePrice) * suiteDiscount);

            if (month == "september" || month == "october")
            {
                if (nightsCount > 7)
                    calcStudioPrice -= (calcStudioPrice / nightsCount);
            }
            string output = $"Studio: {calcStudioPrice:f2} lv. " +
                $"{Environment.NewLine}Double: {calcDoublePrice:f2} lv. " +
                $"{Environment.NewLine}Suite: {calcSuitePrice:f2} lv.";
            Console.WriteLine(output);
        }
    }
}