string Password = "";
            string UPValueCheck = "";
            string Line = "";
            bool Check = false;
            int loginAttempt = 0;



            string user = "";

            while (Check == false && loginAttempt != 3)
            {

                Console.Clear();
                Console.WriteLine("\t\t\t\tPlease Log in");
                Console.WriteLine("--------------------------------------------------------------------------------");
                Console.WriteLine("Username: ");
                Username = Console.ReadLine();
                Console.WriteLine("Password: ");
                Password = Console.ReadLine();
                UPValueCheck = Username + "," + Password;

                using (StreamReader readFile = new StreamReader(Users))
                {
                    while ((Line = readFile.ReadLine()) != null)
                    {
                        var parts = Line.Split(',');
                        if (parts[0] == Username && parts[1] == Password)
                        {
                            Check = true;
                            user = parts[0];
                            usertype = Convert.ToInt32(parts[2]);
                            break;
                        }
                        else
                        {
                            Check = false;
                            loginAttempt = loginAttempt + 1;

                        }
                    }

                }

                if (Check == true)
                {
                    Console.WriteLine("");
                    Console.WriteLine("Correct Username and Password!");
                    Console.WriteLine("Welcome to the system!");
                    System.Threading.Thread.Sleep(1000);
                    MenuSystem();

                }
                else
                {
                    Console.WriteLine("");
                    Console.WriteLine("Invalid Username and Password.");
                    Console.WriteLine("Please try again.");
                    System.Threading.Thread.Sleep(1000);
                    Login();
                }

                if (Check == false && loginAttempt > 2)
                {
                    Console.WriteLine("You have reached maximum attempts. Please contact your Admin.");
                    Console.ReadKey();
                    Environment.Exit(0);

                }
                else
                {
                    break;
                }