from abc import ABC,abstractmethod
class TouchScreenLaptop(ABC):
    @abstractmethod
    def scroll(self):
        pass
    def click(self):
        pass
class HP(TouchScreenLaptop):
    def scroll(self):
        print("HP scroll")
class Dell(TouchScreenLaptop):
    def scroll(self):
        print("Dell scroll")
class HPNoteBook(HP):
     def click(self):
        print("HPNoteBook click")
class DellNoteBook(Dell):
    def click(self):
        print("DELL NoteBook click")
hpnotebook=HPNoteBook()
dellnotebook=DellNoteBook()
hpnotebook.click()
hpnotebook.scroll()
dellnotebook.click() 
dellnotebook.scroll()