





"""simple docstring"""





import sys

__A											=		(
    """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			)					->int:





  """simple docstring"""


  lowerCAmelCase__			:Any											=							1
  for digit in s:
    product *= int(_SCREAMING_SNAKE_CASE			)
  return product
def  __A   (_SCREAMING_SNAKE_CASE = N			)					->int:





  """simple docstring"""


  lowerCAmelCase__			:str											=							-sys.maxsize - 1
  lowerCAmelCase__			:List[Any]											=							n[:13]
  lowerCAmelCase__			:Optional[int]											=							13
  while cur_index < len(_SCREAMING_SNAKE_CASE			) - 13:
    if int(n[cur_index]			) >= int(substr[0]			):
      lowerCAmelCase__			:Any											=							substr[1:] + n[cur_index]
      cur_index += 1
    else:
      lowerCAmelCase__			:Tuple											=							max(_SCREAMING_SNAKE_CASE     ,   str_eval(_SCREAMING_SNAKE_CASE			)			)
      lowerCAmelCase__			:List[Any]											=							n[cur_index : cur_index + 13]
      cur_index += 13
  return largest_product


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







"""simple docstring"""





def  __A   (_SCREAMING_SNAKE_CASE     ,   _SCREAMING_SNAKE_CASE			)					->float:





  """simple docstring"""


  if discount_rate < 0:
    raise ValueError('Discount rate cannot be negative'			)
  if not cash_flows:
    raise ValueError('Cash flows list cannot be empty'			)
  lowerCAmelCase__			:Union[str, Any]											=							sum(
      cash_flow / ((1 + discount_rate) ** i) for i, cash_flow in enumerate(_SCREAMING_SNAKE_CASE			)			)
  return round(_SCREAMING_SNAKE_CASE     ,   ndigits=2			)


if __name__ == "__main__":
  import doctest

  doctest.testmod()
