P03 SteamAccount

using System;
using System.Collections.Generic;
using System.Linq;

namespace FixProblem
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> Games = Console.ReadLine().Split().ToList();

            string line = Console.ReadLine();

            while (line != "Play!")
            {
                string[] tokens = line.Split();
                string comand = tokens[0];
                string game = tokens[1];

                if (comand == "Install")
                {
                    if (Games.Contains(game) == false)
                    {
                        Games.Add(game);
                    }
                }
                else if (comand == "Uninstall")
                {
                    if (Games.Contains(game) == true)
                    {
                        Games.Remove(game);
                    }
                }
                else if (comand == "Update")
                {
                    if (Games.Contains(game) == true)
                    {
                        Games.Remove(game);
                        Games.Add(game);
                    }

                }
                else if (comand == "Expansion")
                {
                    string[] tok = game.Split('-');
                    string gameName = tok[0];
                    string expansion = tok[1];

                   if (Games.Contains(gameName))
                   {
                        int indexOfGame = Games.IndexOf(gameName);
                        string gameExpansion = game.Replace('-', ':');
                        if (indexOfGame == Games.Capacity - 1)
                        {
                            Games.Add(gameExpansion);
                        }
                        else
                        {
                            Games.Insert(indexOfGame + 1, gameExpansion);
                        }

                   }
                }

                line = Console.ReadLine();
            }

            Console.WriteLine(string.Join(" ", Games));
        }
    }
}