



def      A_ (		__a       :			int = 30						):

				"""simple docstring"""
				a__			 =						exponent + 2
				a__			 =						(1 + 5**0.5) / 2
				a__			 =						(phi**fibonacci_index - (phi - 1) ** fibonacci_index) / 5**0.5

				return int(__a						)


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






def      A_ (		__a       :			float						):

				"""simple docstring"""
				return int(__a						) if x - int(__a						) >= 0 else int(__a						) - 1


if __name__ == "__main__":
	import doctest

	doctest.testmod()

