static void Main(string[] args)
        {
            Balancer balance = Balancer.getInstance();

            balance.Display();

            Balancer balance2 = Balancer.getInstance();

            balance2.Display();

            Balancer balance3 = Balancer.getInstance();

            balance3.Display();

            Balancer balance4 = Balancer.getInstance();

            balance4.Display();

            Balancer balance5 = Balancer.getInstance();

            balance5.Display();

            Balancer balance6 = Balancer.getInstance();

            balance6.Display();
        }
        public static Balancer getInstance()
        {
            if (Instance1 == null)
            {
                Instance1 = new Balancer(1);
                amount++;
                return(Instance1);
            }
            else if (Instance2 == null)
            {
                Instance2 = new Balancer(2);
                amount++;
                return(Instance2);
            }
            else if (Instance3 == null)
            {
                Instance3 = new Balancer(3);
                amount++;
                return(Instance3);
            }
            else
            {
                amount++;
                int num = amount % 3;

                switch (num)
                {
                case 1:
                    uniqueInstance = Instance1;
                    break;

                case 2:
                    uniqueInstance = Instance2;
                    break;

                case 0:
                    uniqueInstance = Instance3;
                    break;
                }
            }
            return(uniqueInstance);
        }