Rage Expenses

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

namespace _10.RageExpenses
{
    class Program
    {
        static void Main(string[] args)
        {
            int lostGames = Int32.Parse(Console.ReadLine());
            decimal priceHeadset = decimal.Parse(Console.ReadLine(), CultureInfo.InvariantCulture);
            decimal priceMouse = decimal.Parse(Console.ReadLine(), CultureInfo.InvariantCulture);
            decimal priceKeyboard = decimal.Parse(Console.ReadLine(), CultureInfo.InvariantCulture);
            decimal priceDisplay = decimal.Parse(Console.ReadLine(), CultureInfo.InvariantCulture);

            int trashedHeadset = 0;
            int trashedMouse = 0;
            int trashedKeyboard = 0;
            int trashedDisplay = 0;
            for (int i = 1; i <= lostGames; i++)
            {
                if (i % 2 == 0)
                    trashedHeadset++;
                if (i % 3 == 0)
                    trashedMouse++;
                if(i % 2 == 0 & i % 3 == 0)
                {
                    trashedKeyboard++;
                    if (trashedKeyboard % 2 == 0)
                        trashedDisplay++;
                }
            }

            decimal sum = priceHeadset * trashedHeadset + priceMouse * trashedMouse + priceKeyboard * trashedKeyboard + priceDisplay * trashedDisplay;

            Console.WriteLine($"Rage expenses: {sum, 0:N2} lv.");

        }
    }
}