Series

using System;

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

            for (int i = 0; i < volume; i++)
            {
                string name = Console.ReadLine();
                double cash = double.Parse(Console.ReadLine());

                switch (name)
                {
                    case "Thrones":
                        cash /= 2;
                        break;
                    case "Lucifer":
                        cash *= 0.6;
                        break;
                    case "Protector":
                        cash *= 0.7;
                        break;
                    case "TotalDrama":
                        cash *= 0.8;
                        break;
                    case "Area":
                        cash *= 0.9;
                        break;
                }
                budget -= cash;
            }

            if (budget >= 0)
            {
                Console.WriteLine($"You bought all the series and left with {budget:F2} lv.");
            }
            else
            {
                Console.WriteLine($"You need {Math.Abs(budget):F2} lv. more to buy the series!");
            }
        }
    }
}