


import math



class 			a      :






		def __init__(  self	,     __UpperCamelCase	,     __UpperCamelCase	,     __UpperCamelCase							)->			str:
						'''simple docstring'''


						A__     :							Union[str, Any]   				=x
						A__     :							List[Any]   				=y
						A__     :							List[str]   				=z






		def __repr__(  self							)->			str:
						'''simple docstring'''


						return F'Point({self.x}, {self.y}, {self.z})'







def   SCREAMING_SNAKE_CASE__						(							snake_case_,	snake_case_	)			->							Union[str, Any]:
				return math.sqrt(abs((b.x - a.x) ** 2 + (b.y - a.y) ** 2 + (b.z - a.z) ** 2	)	)


if __name__ == "__main__":
						import doctest

						doctest.testmod()







def   SCREAMING_SNAKE_CASE__						(							snake_case_	)			->							int:
				if number != int(snake_case_	):
								raise ValueError('''factorial() only accepts integral values'''	)
				if number < 0:
								raise ValueError('''factorial() not defined for negative values'''	)
				A__     :							Union[str, Any]   				=1
				for i in range(1,	number + 1	):
								value *= i
				return value



def   SCREAMING_SNAKE_CASE__						(							snake_case_	)			->							int:
				if not isinstance(snake_case_,	snake_case_	):
								raise ValueError('''factorial() only accepts integral values'''	)
				if n < 0:
								raise ValueError('''factorial() not defined for negative values'''	)
				return 1 if n == 0 or n == 1 else n * factorial(n - 1	)


if __name__ == "__main__":
						import doctest

						doctest.testmod()

						__lowerCamelCase       :       Any				   =			int(input("Enter a positive integer: ").strip() or 0)
						print(F"factorial{n} is {factorial(n)}")



