




def 		__A		(	__lowerCamelCase = 100    )      ->       int:
	a										=							n * (n + 1) * (2 * n + 1) / 6
	a										=							(n * (n + 1) / 2) ** 2
	return int(square_of_sum - sum_of_squares    )


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







def 		__A		(	__lowerCamelCase    )      ->       int:
	a										=							hex_num.strip()
	if not hex_num:
		raise ValueError("""No value was passed to the function"""    )

	a										=							hex_num[0] == """-"""
	if is_negative:
		a										=							hex_num[1:]

	try:
		a										=							int(__lowerCamelCase							,			16    )
	except ValueError:
		raise ValueError("""Invalid value was passed to the function"""    )

	a										=							""""""
	while int_num > 0:
		a										=							str(int_num % 2    ) + bin_str
		int_num >>= 1

	return int(("""-""" + bin_str) if is_negative else bin_str    )


if __name__ == "__main__":
		import doctest

		doctest.testmod()

