


"""simple docstring"""
def 		lowercase							(     _snake_case						:      str     )     ->bool:
	"""simple docstring"""





	if not all(x.isalpha() for x in string     ):
		raise ValueError('''String must only contain alphabetic characters.'''     )

	__snake_case	:						Union[str, Any]						=				sorted(string.lower()     )
	return len(_snake_case     ) == len(set(_snake_case     )     )


if __name__ == "__main__":
			SCREAMING_SNAKE_CASE :    int									=				input("""Enter a string """).strip()

			SCREAMING_SNAKE_CASE :    Optional[int]									=				is_isogram(input_str)
			print(F'{input_str} is {"an" if isogram else "not an"} isogram.')









"""simple docstring"""
def 		lowercase							(     _snake_case						:      int     ,   _snake_case						:      int     )     ->str:
	"""simple docstring"""





	if a < 0 or b < 0:
		raise ValueError('''the value of both inputs must be positive'''     )
	__snake_case	:						Tuple						=				str(bin(_snake_case     )     )[2:]  # remove the leading "0b"
	__snake_case	:						List[Any]						=				str(bin(_snake_case     )     )[2:]
	__snake_case	:						Any						=				max(len(_snake_case     )     ,   len(_snake_case     )     )
	return "0b" + "".join(
	    str(int('''1''' in (char_a, char_b)     )     )
	    for char_a, char_b in zip(a_binary.zfill(_snake_case     )     ,   b_binary.zfill(_snake_case     )     )     )


if __name__ == "__main__":
			import doctest

			doctest.testmod()





