Exam.02-03.May-04.Tourist.Shop

using System;

namespace TouristShop
{
    class Program
    {
        static void Main(string[] args)
        {
            double budget = double.Parse(Console.ReadLine());

            string command = Console.ReadLine();

            int counter = 1;
            double cost = 0;

            while (command != "Stop")
            {

                double price = double.Parse(Console.ReadLine());

                if (counter%3==0)
                {

                    price/=2;

                }

                if (price > budget)
                {

                    Console.WriteLine($"You don't have enough money!");
                    Console.WriteLine($"You need {(price - budget):f2} leva!");
                    break;
                }
                counter++;
                budget -= price;
                cost += price;


                command = Console.ReadLine();

            }
            if (command == "Stop")
            {
                Console.WriteLine($"You bought {counter-1} products for {cost:f2} leva.");
            }
        }
    }
}