




import re


def 					_a							(					lowerCAmelCase )->	list:
		return [char.split() for char in re.split(R'[^ a-z A-Z 0-9 \s]'    ,						str_ )]


def 					_a							(					lowerCAmelCase )->	str:
		SCREAMING_SNAKE_CASE_					      =							split_input(str_ )
		return "".join(
		    [''.join([char.capitalize() for char in sub_str] ) for sub_str in string_split] )


def 					_a							(					lowerCAmelCase    ,						lowerCAmelCase    ,						lowerCAmelCase )->	str:
		try:
				SCREAMING_SNAKE_CASE_					      =							split_input(lowerCAmelCase )
				if upper:
						SCREAMING_SNAKE_CASE_					      =							''.join(
						    [
						        separator.join([char.upper() for char in sub_str] )
						        for sub_str in string_split
						    ] )
				else:
						SCREAMING_SNAKE_CASE_					      =							''.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 					_a							(					lowerCAmelCase )->	str:
		return to_simple_case(lowerCAmelCase )


def 					_a							(					lowerCAmelCase )->	str:
		try:
				SCREAMING_SNAKE_CASE_					      =							to_simple_case(lowerCAmelCase )
				return res_str[0].lower() + res_str[1:]
		except IndexError:
				return "not valid string"


def 					_a							(					lowerCAmelCase    ,						lowerCAmelCase )->	str:
		return to_complex_case(lowerCAmelCase    ,						lowerCAmelCase    ,						'_' )


def 					_a							(					lowerCAmelCase    ,						lowerCAmelCase )->	str:
		return to_complex_case(lowerCAmelCase    ,						lowerCAmelCase    ,						'-' )


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





from math import isqrt


def 					_a							(					lowerCAmelCase )->	bool:
		return all(number % divisor != 0 for divisor in range(2    ,						isqrt(lowerCAmelCase ) + 1 ) )


def 					_a							(					lowerCAmelCase = 10**6 )->	int:
		SCREAMING_SNAKE_CASE_					      =							0
		SCREAMING_SNAKE_CASE_					      =							1
		SCREAMING_SNAKE_CASE_					      =							7
		while prime_candidate < max_prime:
				primes_count += is_prime(lowerCAmelCase )

				cube_index += 1
				prime_candidate += 6 * cube_index

		return primes_count


if __name__ == "__main__":
						print(f"""{solution() = }""")