

'''simple docstring'''

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

def 					__UpperCamelCase				(						lowercase__    :	int,       lowercase__    :	int,       lowercase__    :	list[int],       lowercase__    :	int			):






     '''simple docstring'''





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

     __lowercase      		=0
     for digita in range(10			):
          __lowercase      		=digita

          if (remainder + digita) % 2 == 0:
               __lowercase      		=ODD_DIGITS
          else:
               __lowercase      		=EVEN_DIGITS

          for digita in other_parity_digits:
               __lowercase      		=digita
               result += reversible_numbers(
                   remaining_length - 2,       (remainder + digita + digita) // 10,       lowercase__,       lowercase__,       )
     return result

def 					__UpperCamelCase				(						lowercase__    :	int = 9			):






     '''simple docstring'''





     __lowercase      		=0
     for length in range(1,       max_power + 1			):
          result += reversible_numbers(lowercase__,       0,       [0] * length,       lowercase__			)
     return result


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





'''simple docstring'''

from dataclasses import dataclass, field
from typing import ClassVar, Dict

from ..features import Features, Value
from .base import TaskTemplate


@dataclass(frozen=A )
class 	lowerCAmelCase  (   A ):
       # `task` is not a ClassVar since we want it to be part of the `asdict` output for JSON serialization
       lowerCAmelCase_												=			field(default="summarization" ,      metadata={"include_in_asdict_even_if_is_default": True} )
       lowerCAmelCase_												=			Features({"text": Value("string" )} )
       lowerCAmelCase_												=			Features({"summary": Value("string" )} )
       lowerCAmelCase_												=			"text"
       lowerCAmelCase_												=			"summary"







       @property
       def       snake_case (				self      :			int   ):







            """simple docstring"""







            return {self.text_column: "text", self.summary_column: "summary"}


