04.Парична награда

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Парична_награда
{
    class Program
    {
        static void Main(string[] args)
        {
            int partsProjects = int.Parse(Console.ReadLine());
            double priceForPoint = double.Parse(Console.ReadLine());
            var sum = 0;

            var TotalPrice = 0.0;
            for (int i = 0; i < partsProjects; i++)
            {
                var points = int.Parse(Console.ReadLine());
                if (points % 2 == 0)
                {
                    points= points * 2;

                }
                else
                {
                    points++;

                }
                sum +=points;
                TotalPrice = (sum * priceForPoint) ;
            }

            Console.WriteLine($"{TotalPrice:F2}");
        }
    }
}