static void Main(string[] args) { Console.WriteLine("Hello, World!"); Console.WriteLine("-------------"); Console.WriteLine(); Person person = new Person("Tom", 25); person.Talks(); Student student = new Student("John", 19, "123456789A"); student.Studies(); student.Talks(); DomesticStudents domestic = new DomesticStudents("Mary", 21, "123456788B"); domestic.Talks(); }