code: 
  """simple docstring"""
  
  
  
  
  
  
  
  def 			__UpperCAmelCase		(		a_			:		list				)     ->       bool:
     if not isinstance(a_    ,  a_				):
        raise ValueError("Input series is not valid, valid series - [2, 4, 8]"				)
     if len(a_				) == 0:
        raise ValueError("Input list must be a non empty list"				)
     if len(a_				) == 1:
        return True
     try:
        _UpperCAmelCase   	=					series[1] / series[0]
        for index in range(len(a_				) - 1				):
           if series[index + 1] / series[index] != common_ratio:
              return False
     except ZeroDivisionError:
        return False
     return True
  def 			__UpperCAmelCase		(		a_			:		list				)     ->       float:
     if not isinstance(a_    ,  a_				):
        raise ValueError("Input series is not valid, valid series - [2, 4, 8]"				)
     if len(a_				) == 0:
        raise ValueError("Input list must be a non empty list"				)
     _UpperCAmelCase   	=					1
     for value in series:
        answer *= value
     return pow(a_    ,  1 / len(a_				)				)
  
  
  if __name__ == "__main__":
        import doctest
  
        doctest.testmod()
  
  
style_context: 
  """simple docstring"""
  
  
  
  
  
  
  
  from math import floor, sqrt
  def 			__UpperCAmelCase		(		a_			:		int				)     ->       int:
     _UpperCAmelCase   	=					0.0
     _UpperCAmelCase   	=					1.0
     _UpperCAmelCase   	=					int(sqrt(a_				)				)
     _UpperCAmelCase   	=					root
     _UpperCAmelCase   	=					0
     while integer_part != 2 * root:
        _UpperCAmelCase   	=					denominator * integer_part - numerator
        _UpperCAmelCase   	=					(n - numerator**2) / denominator
        _UpperCAmelCase   	=					int((root + numerator) / denominator				)
        period += 1
     return period
  def 			__UpperCAmelCase		(		a_			:		int = 1_00_00				)     ->       int:
     _UpperCAmelCase   	=					0
     for i in range(2    ,  n + 1				):
        _UpperCAmelCase   	=					sqrt(a_				)
        if sr - floor(a_				) != 0 and continuous_fraction_period(a_				) % 2 == 1:
           count_odd_periods += 1
     return count_odd_periods
  
  
  if __name__ == "__main__":
    print(f'''{solution(int(input().strip()))}''')
  
  