class Person:
def __init__(self, first, last):
self.firstname = first
self.lastname = last
def __str__(self):
return self.firstname + " " + self.lastname
class Employee(Person):
def __init__(self, first, last, staffnum):
super().__init__(first, last)
self.staffnumber = staffnum
def __str__(self):
return super().__str__() + ", " + self.staffnumber