
"""simple docstring"""







from math import ceil
def    __lowerCAmelCase    (_UpperCamelCase = 1001		):
	__lowerCAmelCase      :						Any						      =				1

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

	return total


if __name__ == "__main__":
							import sys

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

"""simple docstring"""







import warnings
from functools import wraps
from typing import Callable
def    __lowerCAmelCase    (_UpperCamelCase		):

	@wraps(_UpperCamelCase		)
	def _inner_fn(*_UpperCamelCase	,  **_UpperCamelCase		):
		warnings.warn(
		    (F"'{fn.__name__}' is experimental and might be subject to breaking changes in the future.")	,  _UpperCamelCase	,  )
		return fn(*_UpperCamelCase	,  **_UpperCamelCase		)

	return _inner_fn