Computer Firm

using System;

namespace ComputerFirm
{
    class Program
    {
        public static void Main()
        {
            int models = int.Parse(Console.ReadLine());
            double sales = 0;
            double rating = 0;

            for (int i = 0; i < models; i++)
            {
                int currentModel = int.Parse(Console.ReadLine());
                int modelRating = currentModel % 10;
                double modelSales = (int)(currentModel / 10);

                if (modelRating == 2)
                {
                    modelSales = 0;
                }
                else if (modelRating == 3)
                {
                    modelSales /= 2;
                }
                else if (modelRating == 4)
                {
                    modelSales *= 0.7;
                }
                else if (modelRating == 5)
                {
                    modelSales *= 0.85;
                }

                sales += modelSales;
                rating += modelRating;
            }
            Console.WriteLine($"{ Math.Floor(sales):f2}");
            Console.WriteLine($"{ (rating / models):f2}");
        }
    }
}