"""simple docstring"""




import re







def 							_UpperCAmelCase		(       lowerCamelCase__     ):





		"""simple docstring"""




		return [char.split() for char in re.split(r"""[^ a-z A-Z 0-9 \s]"""			,  str_     )]







def 							_UpperCAmelCase		(       lowerCamelCase__     ):





		"""simple docstring"""




		lowerCAmelCase__        =   split_input(str_     )
		return "".join(
		    ["""""".join([char.capitalize() for char in sub_str]     ) for sub_str in string_split]     )







def 							_UpperCAmelCase		(       lowerCamelCase__			,  lowerCamelCase__			,  lowerCamelCase__     ):





		"""simple docstring"""




		try:
				lowerCAmelCase__        =   split_input(lowerCamelCase__     )
				if upper:
						lowerCAmelCase__        =   """""".join(
						    [
						        separator.join([char.upper() for char in sub_str]     )
						        for sub_str in string_split
						    ]     )
				else:
						lowerCAmelCase__        =   """""".join(
						    [
						        separator.join([char.lower() for char in sub_str]     )
						        for sub_str in string_split
						    ]     )
				return res_str
		except IndexError:
				return "not valid string"







def 							_UpperCAmelCase		(       lowerCamelCase__     ):





		"""simple docstring"""




		return to_simple_case(lowerCamelCase__     )







def 							_UpperCAmelCase		(       lowerCamelCase__     ):





		"""simple docstring"""




		try:
				lowerCAmelCase__        =   to_simple_case(lowerCamelCase__     )
				return res_str[0].lower() + res_str[1:]
		except IndexError:
				return "not valid string"







def 							_UpperCAmelCase		(       lowerCamelCase__			,  lowerCamelCase__     ):





		"""simple docstring"""




		return to_complex_case(lowerCamelCase__			,  lowerCamelCase__			,  """_"""     )







def 							_UpperCAmelCase		(       lowerCamelCase__			,  lowerCamelCase__     ):





		"""simple docstring"""




		return to_complex_case(lowerCamelCase__			,  lowerCamelCase__			,  """-"""     )


if __name__ == "__main__":
			__import__("doctest").testmod()





"""simple docstring"""




def 							_UpperCAmelCase		(       lowerCamelCase__     ):





		"""simple docstring"""




		assert isinstance(lowerCamelCase__			,  lowerCamelCase__     ), f"""The input value of [n={number}] is not an integer"""

		if number == 1:
				return 2
		elif number < 1:
				lowerCAmelCase__        =   f"""The input value of [n={number}] has to be > 0"""
				raise ValueError(lowerCamelCase__     )
		else:
				lowerCAmelCase__        =   sylvester(number - 1     )
				lowerCAmelCase__        =   num - 1
				lowerCAmelCase__        =   num
				return lower * upper + 1


if __name__ == "__main__":
			print(F"The 8th number in Sylvester's sequence: {sylvester(8)}")




