


import sys

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





def __UpperCAmelCase       (		__A			)						->					int:



       '''simple docstring'''





       UpperCAmelCase__										=     1
       for digit in s:
              product *= int(__A			)
       return product





def __UpperCAmelCase       (		__A = N			)						->					int:



       '''simple docstring'''





       UpperCAmelCase__										=     -sys.maxsize - 1
       UpperCAmelCase__										=     n[:1_3]
       UpperCAmelCase__										=     1_3
       while cur_index < len(__A			) - 1_3:
              if int(n[cur_index]			) >= int(substr[0]			):
                     UpperCAmelCase__										=     substr[1:] + n[cur_index]
                     cur_index += 1
              else:
                     UpperCAmelCase__										=     max(__A ,						str_eval(__A			)			)
                     UpperCAmelCase__										=     n[cur_index : cur_index + 1_3]
                     cur_index += 1_3
       return largest_product


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









class     lowercase__  :






  def __init__(					self      :					List[str]		,						_lowercase      :					list ):




         """simple docstring"""







         UpperCAmelCase__										=     set_counts
         UpperCAmelCase__										=     max(_lowercase )
         UpperCAmelCase__										=     len(_lowercase )
         UpperCAmelCase__										=     [1] * num_sets
         UpperCAmelCase__										=     list(range(_lowercase ) )






  def 			_UpperCAmelCase  (					self      :					Dict		,						_lowercase      :					int		,						_lowercase      :					int ):




         """simple docstring"""







         UpperCAmelCase__										=     self.get_parent(_lowercase )
         UpperCAmelCase__										=     self.get_parent(_lowercase )

         if src_parent == dst_parent:
                return False

         if self.ranks[dst_parent] >= self.ranks[src_parent]:
                self.set_counts[dst_parent] += self.set_counts[src_parent]
                UpperCAmelCase__										=     0
                UpperCAmelCase__										=     dst_parent
                if self.ranks[dst_parent] == self.ranks[src_parent]:
                       self.ranks[dst_parent] += 1
                UpperCAmelCase__										=     self.set_counts[dst_parent]
         else:
                self.set_counts[src_parent] += self.set_counts[dst_parent]
                UpperCAmelCase__										=     0
                UpperCAmelCase__										=     src_parent
                UpperCAmelCase__										=     self.set_counts[src_parent]

         UpperCAmelCase__										=     max(self.max_set		,						_lowercase )
         return True






  def 			_UpperCAmelCase  (					self      :					Optional[Any]		,						_lowercase      :					int ):




         """simple docstring"""







         if self.parents[disj_set] == disj_set:
                return disj_set
         UpperCAmelCase__										=     self.get_parent(self.parents[disj_set] )
         return self.parents[disj_set]





