Hotel

using System;

namespace _04Problem_Hotel
{
    class Hotel
    {
        static void Main(string[] args)
        {
			//Original code look here: https://pastebin.com/z6ETS7dZ
			//My correction look for "Add it by me" and "/"
            string month = Console.ReadLine();

            int nightCount = int.Parse(Console.ReadLine());

            decimal studioRoom = 0;
            decimal doubleRoom = 0;
            decimal suite = 0;
            decimal freeNight = 0;

            if (month.Equals("May") || month.Equals("October"))
            {
                studioRoom += 50.0m;
                doubleRoom += 65.0m;
                suite += 75.0m;

                if (nightCount > 7)
                {
                    studioRoom -= (studioRoom * 0.05m);
                }

                // Add it by me
              	if (month.Equals("October") && nightCount>7)
                {
                    studioRoom *= (nightCount - 1);
                }
              	else
                {
                 	studioRoom *= nightCount;
                }
              	//
                doubleRoom *= nightCount;
                suite *= nightCount;
				//if (month.Equals("October"))
                //{
                //    freeNight = nightCount / 7;
                //    studioRoom -= (freeNight * 47.5m);
                //}

            }
            else if (month.Equals("June") || month.Equals("September"))
            {
                studioRoom += 60.0m;
                doubleRoom += 72.0m;
                suite += 82.0m;

                if (nightCount > 14)
                {
                    doubleRoom -= (doubleRoom * 0.10m);
                }
				//Add it by me
              	if (month.Equals("September") && nightCount>7)
                {
                    studioRoom *= (nightCount - 1);
                }
              	else
                {
                 	studioRoom *= nightCount;
                }
				//

                doubleRoom *= nightCount;
                suite *= nightCount;

				//if (month.Equals("September"))
                //{
                //    freeNight = nightCount / 7;
                //    studioRoom -= (freeNight * 47.5m);
                //}
            }
            else if (month.Equals("July") || month.Equals("August") || month.Equals("December"))
            {
                studioRoom += 68.0m;
                doubleRoom +=77.0m;
                suite += 89.0m;

                if (nightCount > 14)
                {
                    suite -= (suite * 0.15m);
                }

                studioRoom *= nightCount;
                doubleRoom *= nightCount;
                suite *= nightCount;
            }

            Console.WriteLine("Studio: {0:f2} lv.", studioRoom);
            Console.WriteLine("Double: {0:f2} lv.", doubleRoom);
            Console.WriteLine("Suite: {0:f2} lv.", suite);

        }
    }
}