





import sys

__UpperCAmelCase       :   str				       =							(
    "73167176531330624919225119674426574742355349194934"
    "96983520312774506326239578318016984801869478851843"
    "85861560789112949495459501737958331952853208805511"
    "12540698747158523863050715693290963295227443043557"
    "66896648950445244523161731856403098711121722383113"
    "62229893423380308135336276614282806444486645238749"
    "30358907296290491560440772390713810515859307960866"
    "70172427121883998797908792274921901699720888093776"
    "65727333001053367881220235421809751254540594752243"
    "52584907711670556013604839586446706324415722155397"
    "53697817977846174064955149290862569321978468622482"
    "83972241375657056057490261407972968652414535100474"
    "82166370484403199890008895243450658541227588666881"
    "16427171479924442928230863465674813919123162824586"
    "17866458359124566529476545682848912883142607690042"
    "24219022671055626321111109370544217506941658960408"
    "07198403850962455444362981230987879927244284909188"
    "84580156166097919133875499200524063689912560717606"
    "05886116467109405077541002256983155200055935729725"
    "71636269561882670428252483600823257530420752963450"
)







def 			A__							(    SCREAMING_SNAKE_CASE__)   ->    str:
  __snake_case:						Any   =						1
  for digit in s:
    product *= int(UpperCamelCase__)
  return product







def 			A__							(    SCREAMING_SNAKE_CASE__ = N)   ->    Tuple:
  __snake_case:						List[Any]   =						-sys.maxsize - 1
  __snake_case:						Tuple   =						n[:13]
  __snake_case:						Union[str, Any]   =						13
  while cur_index < len(UpperCamelCase__) - 13:
    if int(n[cur_index]) >= int(substr[0]):
      __snake_case:						int   =						substr[1:] + n[cur_index]
      cur_index += 1
    else:
      __snake_case:						Tuple   =						max(UpperCamelCase__					,					str_eval(UpperCamelCase__))
      __snake_case:						Any   =						n[cur_index : cur_index + 13]
      cur_index += 13
  return largest_product


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














"""simple docstring"""




from collections.abc import Iterable
from typing import Generic, TypeVar

_snake_case          =   TypeVar('_T')






class        UpperCamelCase			(	Generic[_T]      ):


 def __init__(     self		:						Optional[int]							,						UpperCAmelCase__		:						Iterable[_T] | None = None							)					->       None:
   _a  :       list[_T]             =	list(iterable or []							)
   _a  :       list[_T]             =	[]


 def __len__(     self		:						str							)					->       int:
   return len(self._stacka							) + len(self._stacka							)


 def __repr__(     self		:						List[str]							)					->       str:
   return f"""Queue({tuple(self._stacka[::-1] + self._stacka							)})"""


 def _lowercase	(     self		:						Union[str, Any]							,						UpperCAmelCase__		:						_T							)					->       None:
   self._stacka.append(UpperCAmelCase__							)







 def _lowercase	(     self		:						Optional[Any]							)					->       _T:
   _a  :       Any             =	self._stacka.pop
   _a  :       Union[str, Any]             =	self._stacka.append

   if not self._stacka:
     while self._stacka:
       stacka_append(stacka_pop()							)

   if not self._stacka:
     raise IndexError("""Queue is empty"""							)
   return self._stacka.pop()


if __name__ == "__main__":
 from doctest import testmod

 testmod()

