class Member:
    def __init__(self, name, id):
        self.name = name
        self.id = id

    def view_content(self):
        print("기본 콘텐츠를 감상합니다")


class PremiumMember(Member):
    def __init__(self, name, id):
        super().__init__(name, id)

    def view_content(self):
        print("4K 고화질 콘텐츠와 광고 없는 영상을 감상합니다")

    def download(self):
        print("콘텐츠를 다운로드합니다")


normal = Member("철수", "user01")
premium = PremiumMember("영희", "user02")

normal.view_content()     
premium.view_content()    
premium.download()