using System;

public class Employee

{

    public string FirstName = "FN";

    public string LastName = "LN";

    public string Email;

    public virtual void PrintFullName()

    {

        Console.WriteLine(" {0} {1}", FirstName, LastName);

    }

}

​

public class PartTimeEmployee : Employee

{

    public override void PrintFullName()

    {

        Console.WriteLine(" {0} {1} - Part time", FirstName, LastName);

    }

    public float HourlyRate;

}

​

public class FullTimeEmployee : Employee

{

    public override void PrintFullName()

    {

        Console.WriteLine(" {0} {1} - Full time", FirstName, LastName);

    }

    public float YearlySalary;

}

​

public class TemperoryEmployee : Employee

{

    public override void PrintFullName()

    {

        Console.WriteLine(" {0} {1} - Temperory", FirstName, LastName);

    }   

}

​

public class Program

{

    public static void Main()

    {

        Employee[] employees = new Employee[4];

        employees[0] = new Employee();

        employees[1] = new PartTimeEmployee();

        employees[2] = new FullTimeEmployee();

        employees[3] = new TemperoryEmployee();

        foreach(Employee e in employees)

        {

            e.PrintFullName();

        }

        Console.WriteLine("Hello World");

    }

}