



import sys

A_		:     List[Any]        =     (
    '''73167176531330624919225119674426574742355349194934'''
    '''96983520312774506326239578318016984801869478851843'''
    '''85861560789112949495459501737958331952853208805511'''
    '''12540698747158523863050715693290963295227443043557'''
    '''66896648950445244523161731856403098711121722383113'''
    '''62229893423380308135336276614282806444486645238749'''
    '''30358907296290491560440772390713810515859307960866'''
    '''70172427121883998797908792274921901699720888093776'''
    '''65727333001053367881220235421809751254540594752243'''
    '''52584907711670556013604839586446706324415722155397'''
    '''53697817977846174064955149290862569321978468622482'''
    '''83972241375657056057490261407972968652414535100474'''
    '''82166370484403199890008895243450658541227588666881'''
    '''16427171479924442928230863465674813919123162824586'''
    '''17866458359124566529476545682848912883142607690042'''
    '''24219022671055626321111109370544217506941658960408'''
    '''07198403850962455444362981230987879927244284909188'''
    '''84580156166097919133875499200524063689912560717606'''
    '''05886116467109405077541002256983155200055935729725'''
    '''71636269561882670428252483600823257530420752963450'''
)


def 	UpperCAmelCase__      (      UpperCAmelCase__ :str = N					):






 '''simple docstring'''

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


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






def 	UpperCAmelCase__      (      UpperCAmelCase__ :int ,					UpperCAmelCase__ :int					):






 '''simple docstring'''

 if a < 0 or b < 0:
  raise ValueError("the value of both inputs must be positive"					)

 a						=		str(bin(UpperCAmelCase__					)					)[2:]  # remove the leading "0b"
 a						=		str(bin(UpperCAmelCase__					)					)[2:]  # remove the leading "0b"

 a						=		max(len(UpperCAmelCase__					) ,					len(UpperCAmelCase__					)					)

 return "0b" + "".join(
     str(int(char_a == "1" and char_b == "1"					)					)
     for char_a, char_b in zip(a_binary.zfill(UpperCAmelCase__					) ,					b_binary.zfill(UpperCAmelCase__					)					)					)


if __name__ == "__main__":
     import doctest

     doctest.testmod()

