static void Main(string[] args)
        {
            productFactory obj  = new productFactory();
            Repository     obj1 = new Repository();

            Console.WriteLine("Enter Product which you want to book or save:");
            string   productName = Console.ReadLine();
            Iproduct prod        = obj.GetProduct(productName);

            string product = prod.GetTypeOfProduct();

            Console.WriteLine("Enter the storage type ");
            string      storageType = Console.ReadLine();
            Irepository storage     = obj1.GetStorageType(storageType);

            Console.WriteLine("Enter your choice\n1.save " + product + "\n2.Book " + product);
            int ch = Convert.ToInt32(Console.ReadLine());

            switch (ch)
            {
            case 1:
                prod.Save();
                break;

            case 2:
                prod.Book(prod, storage);
                break;
            }
        }