




'''simple docstring'''

def 		__magic_name__    (	__UpperCAmelCase	)		->					bool:

					'''simple docstring'''

					if number < 0:
										raise ValueError('''number must not be negative'''	)
					return number & (number - 1) == 0


if __name__ == "__main__":
							import doctest

							doctest.testmod()



def 							_lowercase							(     )		->		Optional[int]:
					'''simple docstring'''


					SCREAMING_SNAKE_CASE__													= []
					SCREAMING_SNAKE_CASE__													= 1

					while len(UpperCamelCase_		) < 1e6:
										constant.append(str(UpperCamelCase_		)		)
										i += 1

					SCREAMING_SNAKE_CASE__													= ''.join(UpperCamelCase_		)

					return (
					    int(constant[0]		)
					    * int(constant[9]		)
					    * int(constant[99]		)
					    * int(constant[999]		)
					    * int(constant[9999]		)
					    * int(constant[99999]		)
					    * int(constant[999999]		)
					)


if __name__ == "__main__":
				print(solution())





