



"""simple docstring"""







from collections import namedtuple

UpperCAmelCase:  Tuple			     =				namedtuple("""from_to""", """from_ to""")

UpperCAmelCase:  Union[str, Any]			     =				{
    """atm""": from_to(1, 1),
    """pascal""": from_to(0.0_000_098, 101_325),
    """bar""": from_to(0.986_923, 1.01_325),
    """kilopascal""": from_to(0.00_986_923, 101.325),
    """megapascal""": from_to(9.86_923, 0.101_325),
    """psi""": from_to(0.068_046, 14.6_959),
    """inHg""": from_to(0.0_334_211, 29.9_213),
    """torr""": from_to(0.00_131_579, 760),
}


def  __SCREAMING_SNAKE_CASE (  __UpperCAmelCase   ,				__UpperCAmelCase   ,				__UpperCAmelCase      ):
		if from_type not in PRESSURE_CONVERSION:
				raise ValueError(
				    F"""Invalid 'from_type' value: {from_type!r}  Supported values are:\n"""
				    + """, """.join(__UpperCAmelCase      )      )
		if to_type not in PRESSURE_CONVERSION:
				raise ValueError(
				    F"""Invalid 'to_type' value: {to_type!r}.  Supported values are:\n"""
				    + """, """.join(__UpperCAmelCase      )      )
		return (
		    value * PRESSURE_CONVERSION[from_type].from_ * PRESSURE_CONVERSION[to_type].to
		)


if __name__ == "__main__":
		import doctest

		doctest.testmod()








"""simple docstring"""







from math import floor, sqrt


def  __SCREAMING_SNAKE_CASE (  __UpperCAmelCase      ):
		_lowercase				: Optional[int]     =   0.0
		_lowercase				: Dict     =   1.0
		_lowercase				: Optional[int]     =   int(sqrt(__UpperCAmelCase      )      )
		_lowercase				: Optional[Any]     =   root
		_lowercase				: Dict     =   0
		while integer_part != 2 * root:
				_lowercase				: str     =   denominator * integer_part - numerator
				_lowercase				: Optional[int]     =   (n - numerator**2) / denominator
				_lowercase				: List[str]     =   int((root + numerator) / denominator      )
				period += 1
		return period


def  __SCREAMING_SNAKE_CASE (  __UpperCAmelCase = 10000      ):
		_lowercase				: List[str]     =   0
		for i in range(2   ,				n + 1      ):
				_lowercase				: Dict     =   sqrt(__UpperCAmelCase      )
				if sr - floor(__UpperCAmelCase      ) != 0 and continuous_fraction_period(__UpperCAmelCase      ) % 2 == 1:
						count_odd_periods += 1
		return count_odd_periods


if __name__ == "__main__":
		print(F'{solution(int(input().strip()))}')



