

"""simple docstring"""


def     a__    (    __SCREAMING_SNAKE_CASE )	->	int:
		if not isinstance(SCREAMING_SNAKE_CASE_					, SCREAMING_SNAKE_CASE_ ):
				raise TypeError("Input value must be an \'int\' type" )

		__lowerCAmelCase:       Dict          =			0
		while number:
				position += 1
				number >>= 1

		return position


if __name__ == "__main__":
			import doctest

			doctest.testmod()






"""simple docstring"""




def     lowercase			(SCREAMING_SNAKE_CASE_		:				int = 10_00  )   ->						int:
						SCREAMING_SNAKE_CASE													=					2**power
						SCREAMING_SNAKE_CASE													=					0
						while n:
												SCREAMING_SNAKE_CASE							,				SCREAMING_SNAKE_CASE													=					r + n % 10, n // 10
						return r


if __name__ == "__main__":
	print(solution(int(str(input()).strip())))


