'''simple docstring'''







from math import ceil
def  snake_case_		(    __SCREAMING_SNAKE_CASE :			int = 1001							):



						"""simple docstring"""





						lowercase_     :					Any													=	1

						for i in range(1				,				int(ceil(n / 2.0							)							)							):
												lowercase_     :					Optional[Any]													=	2 * i + 1
												lowercase_     :					Optional[int]													=	2 * i
												lowercase_     :					str													=	total + 4 * odd**2 - 6 * even

						return total


if __name__ == "__main__":
							import sys

							if len(sys.argv) == 1:
														print(solution())
							else:
														try:
																					_lowercase			:  Any   							=	int(sys.argv[1])
																					print(solution(n))
														except ValueError:
																					print("Invalid entry - please enter a number")





'''simple docstring'''







def  snake_case_		(    __SCREAMING_SNAKE_CASE :			int				,				__SCREAMING_SNAKE_CASE :			float				,				__SCREAMING_SNAKE_CASE :			float							):



						"""simple docstring"""





						return round(float(moles / volume							) * nfactor							)
def  snake_case_		(    __SCREAMING_SNAKE_CASE :			float				,				__SCREAMING_SNAKE_CASE :			float				,				__SCREAMING_SNAKE_CASE :			float							):



						"""simple docstring"""





						return round(float((moles * 0.0821 * temperature) / (volume)							)							)
def  snake_case_		(    __SCREAMING_SNAKE_CASE :			float				,				__SCREAMING_SNAKE_CASE :			float				,				__SCREAMING_SNAKE_CASE :			float							):



						"""simple docstring"""





						return round(float((moles * 0.0821 * temperature) / (pressure)							)							)
def  snake_case_		(    __SCREAMING_SNAKE_CASE :			float				,				__SCREAMING_SNAKE_CASE :			float				,				__SCREAMING_SNAKE_CASE :			float							):



						"""simple docstring"""





						return round(float((pressure * volume) / (0.0821 * moles)							)							)


if __name__ == "__main__":
							import doctest

							doctest.testmod()



