


'''simple docstring'''
import sys

__snake_case							   =  (
    '''73167176531330624919225119674426574742355349194934'''
    '''96983520312774506326239578318016984801869478851843'''
    '''85861560789112949495459501737958331952853208805511'''
    '''12540698747158523863050715693290963295227443043557'''
    '''66896648950445244523161731856403098711121722383113'''
    '''62229893423380308135336276614282806444486645238749'''
    '''30358907296290491560440772390713810515859307960866'''
    '''70172427121883998797908792274921901699720888093776'''
    '''65727333001053367881220235421809751254540594752243'''
    '''52584907711670556013604839586446706324415722155397'''
    '''53697817977846174064955149290862569321978468622482'''
    '''83972241375657056057490261407972968652414535100474'''
    '''82166370484403199890008895243450658541227588666881'''
    '''16427171479924442928230863465674813919123162824586'''
    '''17866458359124566529476545682848912883142607690042'''
    '''24219022671055626321111109370544217506941658960408'''
    '''07198403850962455444362981230987879927244284909188'''
    '''84580156166097919133875499200524063689912560717606'''
    '''05886116467109405077541002256983155200055935729725'''
    '''71636269561882670428252483600823257530420752963450'''
)


def     a   (    __a = N     )						->			int:



					'''simple docstring'''






					UpperCamelCase__     :Any							      =				-sys.maxsize - 1
					for i in range(len(__a     ) - 12     ):
										UpperCamelCase__     :str							      =				1
										for j in range(13     ):
															product *= int(n[i + j]     )
										if product > largest_product:
															UpperCamelCase__     :Optional[Any]							      =				product
					return largest_product


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



'''simple docstring'''
class      lowercase			:

		"""simple docstring"""

		def __init__(	self					,     UpperCamelCase_							):

							'''simple docstring'''


							UpperCamelCase__     :Union[str, Any]							      =				n
							UpperCamelCase__     :Tuple							      =				[None] * self.n
							UpperCamelCase__     :str							      =				0  # index of the first element
							UpperCamelCase__     :List[Any]							      =				0
							UpperCamelCase__     :Dict							      =				0




		def __len__(	self							):

							'''simple docstring'''


							return self.size




		def 					lowerCAmelCase__       (	self							):

							'''simple docstring'''


							return self.size == 0




		def 					lowerCAmelCase__       (	self							):

							'''simple docstring'''


							return False if self.is_empty() else self.array[self.front]




		def 					lowerCAmelCase__       (	self					,     UpperCamelCase_							):

							'''simple docstring'''


							if self.size >= self.n:
												raise Exception('''QUEUE IS FULL'''							)

							UpperCamelCase__     :List[Any]							      =				data
							UpperCamelCase__     :List[Any]							      =				(self.rear + 1) % self.n
							self.size += 1
							return self




		def 					lowerCAmelCase__       (	self							):

							'''simple docstring'''


							if self.size == 0:
												raise Exception('''UNDERFLOW'''							)

							UpperCamelCase__     :Dict							      =				self.array[self.front]
							UpperCamelCase__     :Union[str, Any]							      =				None
							UpperCamelCase__     :Union[str, Any]							      =				(self.front + 1) % self.n
							self.size -= 1
							return temp