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

    def get_name(self):
        return self.name

    def get_last_name(self):
        return self.last_name

    def get_age(self):
        return self.age

class Note:
    def __init__(self, grades):
        self.grades = grades

    def get_grades(self):
        return self.grades

    def get_grade(self, subject):
        return self.grades.get(subject, None)

class Student(Osoba):
    def __init__(self, name, last_name, age, index_nr, grades):
        super().__init__(name, last_name, age)
        self.index_nr = index_nr
        self.notes = Note(grades)

    def get_index_nr(self):
        return self.index_nr

    def get_notes(self):
        return self.notes.get_grades()

class Employee(Osoba):
    def __init__(self, name, last_name, age, salary, position):
        super().__init__(name, last_name, age)
        self.salary = salary
        self.position = position

    def get_salary(self):
        return self.salary

    def get_position(self):
        return self.position

class WorkingStudent(Student, Employee):
    def __init__(self, name, last_name, age, index_nr, grades, salary, position):
        Student.__init__(self, name, last_name, age, index_nr, grades)
        Employee.__init__(self, name, last_name, age, salary, position)

# Przykładowa inicjalizacja obiektu klasy WorkingStudent
grades = {
    "Mathematics": 4,
    "Physics": 5,
    "Chemistry": 3
}

working_student = WorkingStudent("Anna", "Kowalska", 24, "2021001", grades, 2500, "Intern")

# Wyświetlenie danych pracującego studenta
print(f"Working Student: {working_student.get_name()} {working_student.get_last_name()}, Age: {working_student.get_age()}")
print(f"Index: {working_student.get_index_nr()}, Grades: {working_student.get_notes()}")
print(f"Position: {working_student.get_position()}, Salary: {working_student.get_salary()} PLN")