0.1.3

class SchoolMember:
    def __init__(self, name, age):
        self.name = name
        self.age = age


class Teacher(SchoolMember):
    def __init__(self, name, age, salary):
        super().__init__(name, age)
        self.salary = salary
        self.courses = []

    def add_course(self, course):
        self.courses.append(course)

    def remove_course(self, course):
        self.courses.remove(course)



class Student(SchoolMember):
    def __init__(self, name, age):
        super().__init__(name, age)
        self.courses = []

    def add_course(self, course):
        self.courses.append(course)

    def remove_course(self, course):
        self.courses.remove(course)


a = Student('Georgi', 16)
a.add_course('Math')
print(a.courses)  # ['Math']