class Program
    {
        static void Main(string[] args)
        {
            Table bla = new Table(5);

            int b = bla.get();

            Table liran = new Table(3);
            Table ido = new Table(8);

            int c = ido.get() + liran.get();

            Console.WriteLine("do you want to change the height of the Table?");
            string answer = Console.ReadLine();
            if (answer == "yes")
            {
                Console.WriteLine("Enter the height of the table");
                int height = int.Parse(Console.ReadLine());
                liran.set(height);
                Console.WriteLine("the height of your table is now: " + liran.get());
            }

        }
    }
    class Table
    {
        private int height;
        public Table(int a)
        {
            height = a;
        }

        public int get()
        {
            return height;
        }

        public void set(int change)
        {
            height = change;
        }
    }