# coding:utf-8
      # Add Properties and methods to child class

      class Person:
        def __init__(self, fname, lname):
          self.firstname = fname
          self.lastname = lname

        def printname(self):
          print(self.firstname, self.lastname)
          
      class Student(Person):
        def __init__(self, fname, lname, year):
          super().__init__(fname, lname)
          self.graduationyear = year
          
        def welcome(self):
          print("Welcome", self.firstname, self.lastname, "to the class of", self.graduationyear) 
          
      x = Student("George","Bridgeston",2022)
      x.welcome()