using System;

public class Program

{

    public static void Main()

    {

            Human h1 = new Human();

            Son son1 = new Son();

            son1.setEyes();

            Console.WriteLine(son1.getEyes());

            son1.setTestosteroneLevel();

            Console.WriteLine(son1.getTestosteroneLevel());

            Console.ReadKey();

        }

        public class Human

        {

            private string eyecolour;

            private string haircolour;

            private int age;

​

            public Human()

            {

​

            }

            public void setEyes()

            {

                Console.WriteLine("Tell me the eye colour of this human");

                eyecolour = Console.ReadLine();

            }

            public string getEyes()

            {

                return eyecolour;

            }

​

        }

        public class Son : Human

        {

            private int testosteroneLevel;

​

            public Son()

            {

​

            }

            public void setTestosteroneLevel()

            {

                Console.WriteLine("Please tell me the testosterone level of the son");

                testosteroneLevel = Convert.ToInt32(Console.ReadLine());

            }

            public int getTestosteroneLevel()

            {

                return testosteroneLevel;

            }

        }

}