
"""simple docstring"""






from __future__ import annotations

import sys




def __magic_name__  (							_lowerCamelCase:		Dict )				->	int:

	'''simple docstring'''




	if n < 0:
		raise ValueError('''Negative arguments are not supported''' )
	return _fib(__snake_case )[0]




def __magic_name__  (							_lowerCamelCase:		Dict )				->	tuple[int, int]:

	'''simple docstring'''




	if n == 0:  # (F(0), F(1))
		return (0, 1)

	# F(2n) = F(n)[2F(n+1) − F(n)]
	# F(2n+1) = F(n+1)^2+F(n)^2
	lowerCAmelCase       ,					lowerCAmelCase				       =     _fib(n // 2 )
	lowerCAmelCase				       =     a * (b * 2 - a)
	lowerCAmelCase				       =     a * a + b * b
	return (d, c + d) if n % 2 else (c, d)


if __name__ == "__main__":
					UpperCAmelCase          =						int(sys.argv[1])
					print(f"""fibonacci({n}) is {fibonacci(n)}""")




"""simple docstring"""






def __magic_name__  (							_lowerCamelCase:		list[int] )				->	int:

	'''simple docstring'''




	lowerCAmelCase				       =     len(_lowerCamelCase )
	if n in (0, 1):
		return 0
	return sum(query * (n - i - 1) for i, query in enumerate(sorted(_lowerCamelCase ) ) )


if __name__ == "__main__":
					import doctest

					doctest.testmod()


