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();
}
