

"""simple docstring"""
def     __lowerCamelCase  (		UpperCamelCase__ = 99_8001      ):


	"""simple docstring"""






	_UpperCAmelCase =						0
	for i in range(999				,     99				,     -1      ):  # 3 digit numbers range from 999 down to 100
		for j in range(999				,     99				,     -1      ):
			_UpperCAmelCase =						str(i * j      )
			if product_string == product_string[::-1] and i * j < n:
				_UpperCAmelCase =						max(UpperCamelCase__				,     i * j      )
	return answer


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






"""simple docstring"""
from collections import namedtuple

__magic_name__		       =				namedtuple('''from_to''', '''from_ to''')

__magic_name__		       =				{
    '''atm''': from_to(1, 1),
    '''pascal''': from_to(0.0000098, 10_13_25),
    '''bar''': from_to(0.986923, 1.01325),
    '''kilopascal''': from_to(0.00986923, 101.325),
    '''megapascal''': from_to(9.86923, 0.101325),
    '''psi''': from_to(0.068046, 14.6959),
    '''inHg''': from_to(0.0334211, 29.9213),
    '''torr''': from_to(0.00131579, 7_60),
}




def     __lowerCamelCase  (		UpperCamelCase__				,     UpperCamelCase__				,     UpperCamelCase__      ):


	"""simple docstring"""






	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()




