





def     A__					(						SCREAMING_SNAKE_CASE_      :			list	)     ->     bool:






   """simple docstring"""







   if not isinstance(SCREAMING_SNAKE_CASE_							,  SCREAMING_SNAKE_CASE_	):
      raise ValueError('''Input series is not valid, valid series - [1, 2/3, 2]'''	)
   if len(SCREAMING_SNAKE_CASE_	) == 0:
      raise ValueError('''Input list must be a non empty list'''	)
   if len(SCREAMING_SNAKE_CASE_	) == 1 and series[0] != 0:
      return True
   _UpperCAmelCase											=      []
   _UpperCAmelCase											=      len(SCREAMING_SNAKE_CASE_	)
   for i in range(0							,  SCREAMING_SNAKE_CASE_	):
      if series[i] == 0:
         raise ValueError('''Input series cannot have 0 as an element'''	)
      rec_series.append(1 / series[i]	)
   _UpperCAmelCase											=      rec_series[1] - rec_series[0]
   for index in range(2							,  SCREAMING_SNAKE_CASE_	):
      if rec_series[index] - rec_series[index - 1] != common_diff:
         return False
   return True
def     A__					(						SCREAMING_SNAKE_CASE_      :			list	)     ->     float:






   """simple docstring"""







   if not isinstance(SCREAMING_SNAKE_CASE_							,  SCREAMING_SNAKE_CASE_	):
      raise ValueError('''Input series is not valid, valid series - [2, 4, 6]'''	)
   if len(SCREAMING_SNAKE_CASE_	) == 0:
      raise ValueError('''Input list must be a non empty list'''	)
   _UpperCAmelCase											=      0
   for val in series:
      answer += 1 / val
   return len(SCREAMING_SNAKE_CASE_	) / answer


if __name__ == "__main__":
   import doctest

   doctest.testmod()






def     A__					(						SCREAMING_SNAKE_CASE_      :			List[Any]							,  SCREAMING_SNAKE_CASE_      :			Dict	)     ->     Any:






   """simple docstring"""







   if n == 0:
      return 1

   elif n % 2 == 1:
      return binary_exponentiation(SCREAMING_SNAKE_CASE_							,  n - 1	) * a

   else:
      _UpperCAmelCase											=      binary_exponentiation(SCREAMING_SNAKE_CASE_							,  n / 2	)
      return b * b


if __name__ == "__main__":
   try:
      UpperCAmelCase_											=  int(input("Enter Base : ").strip())
      UpperCAmelCase_											=  int(input("Enter Power : ").strip())
   except ValueError:
      print("Invalid literal for integer")

   UpperCAmelCase_											=  binary_exponentiation(BASE, POWER)
   print(f'''{BASE}^({POWER}) : {RESULT}''')