


'''simple docstring'''







def 	SCREAMING_SNAKE_CASE_					(  _UpperCAmelCase	:	str  )  ->			int:
       _a    : str     					=0

       # if input_string is "aba" than new_input_string become "a|b|a"
       _a    : Union[str, Any]     					=""
       _a    : Optional[Any]     					=""

       # append each character + "|" in new_string for range(0, length-1)
       for i in input_string[: len(_lowerCamelCase  ) - 1]:
              new_input_string += i + "|"
       # append last character
       new_input_string += input_string[-1]

       # we will store the starting and ending of previous furthest ending palindromic
       # substring
       _a    : List[str]     					=0, 0

       # length[i] shows the length of palindromic substring with center i
       _a    : Optional[Any]     					=[1 for i in range(len(_lowerCamelCase  )  )]

       # for each character in new_string find corresponding palindromic string
       _a    : Optional[Any]     					=0
       for j in range(len(_lowerCamelCase  )  ):
              _a    : Dict     					=1 if j > r else min(length[l + r - j] // 2    ,r - j + 1  )
              while (
                  j - k >= 0
                  and j + k < len(_lowerCamelCase  )
                  and new_input_string[k + j] == new_input_string[j - k]
              ):
                     k += 1

              _a    : Any     					=2 * k - 1

              # does this string is ending after the previously explored end (that is r) ?
              # if yes the update the new r to the last index of this
              if j + k - 1 > r:
                     _a    : List[str]     					=j - k + 1  # noqa: E741
                     _a    : List[Any]     					=j + k - 1

              # update max_length and start position
              if max_length < length[j]:
                     _a    : Tuple     					=length[j]
                     _a    : Optional[int]     					=j

    # create that string
       _a    : Tuple     					=new_input_string[start - max_length // 2 : start + max_length // 2 + 1]
       for i in s:
              if i != "|":
                     output_string += i

       return output_string


if __name__ == "__main__":
   import doctest

   doctest.testmod()



UpperCamelCase  							=						[0, 2, 4, 6, 8]
UpperCamelCase  							=						[1, 3, 5, 7, 9]

def 			lowercase_				(			_lowerCamelCase							:       int		,	_lowerCamelCase							:       int		,	_lowerCamelCase							:       list[int]		,	_lowerCamelCase							:       int):
    if remaining_length == 0:
        if digits[0] == 0 or digits[-1] == 0:
            return 0

        for i in range(length // 2 - 1		,	-1		,	-1):
            remainder += digits[i] + digits[length - i - 1]

            if remainder % 2 == 0:
                return 0

            remainder //= 10

        return 1

    if remaining_length == 1:
        if remainder % 2 == 0:
            return 0

        lowercase__ :   str    					=				0
        for digit in range(10):
            lowercase__ :   str    					=				digit
            result += reversible_numbers(
                0		,	(remainder + 2 * digit) // 10		,	_lowerCamelCase		,	_lowerCamelCase)
        return result

    lowercase__ :   Dict    					=				0
    for digita in range(10):
        lowercase__ :   int    					=				digita

        if (remainder + digita) % 2 == 0:
            lowercase__ :   Optional[Any]    					=				ODD_DIGITS
        else:
            lowercase__ :   str    					=				EVEN_DIGITS

        for digita in other_parity_digits:
            lowercase__ :   List[str]    					=				digita
            result += reversible_numbers(
                remaining_length - 2		,	(remainder + digita + digita) // 10		,	_lowerCamelCase		,	_lowerCamelCase		,	)
    return result

def 			lowercase_				(			_lowerCamelCase							:       int = 9):
    lowercase__ :   Tuple    					=				0
    for length in range(1		,	max_power + 1):
        result += reversible_numbers(_lowerCamelCase		,	0		,	[0] * length		,	_lowerCamelCase)
    return result


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



