class Item:

	def __init__(self, name, price, quantity):
		self.__name = name
		self.__price = price
		self.__quantity = quantity

	def calculate_total(self):
		return self.__price * self.__quantity

	def __str__(self):
		return self.__name + "\t\t\t" + str(self.__price) + "\t\t" + str(self.__quantity) + "\t\t" + str(self.calculate_total)
		