


'''simple docstring'''







def 						_UpperCamelCase							( UpperCamelCase__ = 1000		):






				"""simple docstring"""



				__magic_name__				:					str						       =       0
				for i in range(lowercase__		):
								if i % 3 == 0 or i % 5 == 0:
												result += i
				return result


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



'''simple docstring'''







def 						_UpperCamelCase							( UpperCamelCase__		):






				"""simple docstring"""



				if not isinstance(UpperCamelCase__     ,   UpperCamelCase__		) or number < 0:
								raise ValueError("Input must be a non-negative integer"		)

				__magic_name__				:					str						       =       number & ~(number - 1)
				__magic_name__				:					Optional[int]						       =       0
				while intermediate:
								intermediate >>= 1
								index += 1
				return index - 1


if __name__ == "__main__":
		import doctest

		doctest.testmod(verbose=True)