using System;

namespace Report_System
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int sum = int.Parse(Console.ReadLine());

            double totalMoney = 0;
            double card = 0;
            double cash = 0;
            int count = 0;

            while (totalMoney <= sum)
            {
                string itemsPrice = Console.ReadLine();

                if (itemsPrice == "End")
                {
                    Console.WriteLine("Failed to collect required money for charity.");
                    break;
                }




                count++;
                if (count % 2 != 0)
                {
                    // плащане в брой
                    if (Math.Abs(int.Parse(itemsPrice)) > 100)
                    {

                        Console.WriteLine("Error in transaction!");

                        // отхърлено
                    }
                    else
                    {
                        cash += int.Parse(itemsPrice);
                        Console.WriteLine("Product sold!");
                    }
                }

                else
                {
                    // плащане с карта
                    if (Math.Abs(int.Parse(itemsPrice)) < 10)
                    {

                        Console.WriteLine("Error in transaction!");

                        // отхвърлено
                    }
                    else
                    {
                        card += int.Parse(itemsPrice);
                        Console.WriteLine("Product sold!");
                    }
                }
                totalMoney = card + cash;

            }
            if (totalMoney >= sum)
            {
                Console.WriteLine($"Average CS: {cash / 2:f2}");
                Console.WriteLine($"Average CC: {card / 2:f2}");
            }

        }
    }
}