//no animal class, inheritance not important now
        public class Dog{

            string name;

            void MakeSound()
            {
                Console.WriteLine("Bark bark");
            }
        }

        public class Duck{

            string name;

            void MakeSound()
            {
                Console.WriteLine("Quack quack");
            }
        }

        public class Cow{

            string name;

            void MakeSound()
            {
                Console.WriteLine("Moo moo");
            }
        }

        public static void Main(string[] args)
        {
            Dog dog = new Dog("Dogy");
            dog.MakeSound();

            Duck duck = new Duck("Ducky");
            duck.MakeSound();

            Coew cow = new Cow("Cowy");
            cow.MakeSound();
        }