#!/usr/bin/python3.8
class Books:
	object_counter=0
	def __init__(self,my_isbn,my_title,my_price):
		self.__isbn=my_isbn
		self.title=my_title
		self.price=my_price
		if self.price>10:
			                                                                            Books.object_counter+=1
	def set_isbn(self,my_isbn):
		self.__isbn=my_isbn
	def get_isbn(self):
		return self.__isbn
	def __str__(self):
		return self.__isbn
	def __str__(self):
		return f'{ self.__isbn},{self.title},{self.price}'
	@classmethod
	def showcount(cls):
		return cls.object_counter 
		
def main():
	x=Books(1234,"My title",30.45)
	print(x)
	x.title="New title"
	print(x)
	print(Books.showcount())






if __name__=="__main__":
	main()