Restaurant

using System;

namespace RestaurantDiscount
{
    class RestaurantDiscount
    {
        static void Main()
        {
            decimal groupSize = decimal.Parse(Console.ReadLine());
            string package = Console.ReadLine().ToLower();
            string hall = "";
            decimal price = 0.0m;

            if (groupSize <= 50)
            {
                hall = "Small Hall";
                price = 2500.0m;
            }
            else if (groupSize <= 100 && groupSize > 50)
            {
                hall = "Terrace";
                price = 5000.0m;
            }
            else if (groupSize <= 120 && groupSize > 100)
            {
                hall = "Great Hall";
                price = 7500.0m;
            }
            else
            {
                Console.WriteLine("We do not have an appropriate hall.");
                return;
            }
            decimal discount = 0.0m;
            switch (package)
            {
                case "normal":
                    price += 500.0m;
                    discount = price * 0.5m;
                    break;
                case "gold":
                    price += 750.0m;
                    discount = price * 0.10m;
                    break;
                case "platinum":
                    price += 1000.0m;
                    discount = price * 0.15m;
                    break;
            }
            decimal totalPrice = (price - discount) / groupSize;
            Console.WriteLine($"We can offer you the {hall}");
            Console.WriteLine($"The price per person is {totalPrice:F2}$");

        }
    }
}