



from __future__ import annotations

import sys
from collections import deque
from typing import Generic, TypeVar

_lowercase    	=		TypeVar("T")



class      _UpperCAmelCase      (							Generic[T]  ):
     UpperCamelCase__		     =					42  # Cache store of keys
     UpperCamelCase__		     =					42  # References of the keys in cache
     UpperCamelCase__		     =					10  # Maximum capacity of cache




     def __init__(					self			,    a__):
         A__					=       deque()
         A__					=       set()
         if not n:
             A__					=       sys.maxsize
         elif n < 0:
             raise ValueError('''n should be an integer greater than 0.''')
         else:
             A__					=       n




     def 		snake_case_		(					self			,    a__):
         if x not in self.key_reference:
             if len(self.dq_store) == LRUCache._MAX_CAPACITY:
                 A__					=       self.dq_store.pop()
                 self.key_reference.remove(a__)
         else:
             self.dq_store.remove(a__)

         self.dq_store.appendleft(a__)
         self.key_reference.add(a__)




     def 		snake_case_		(					self):
         for k in self.dq_store:
             print(a__)




     def __repr__(					self):
         return F"LRUCache({self._MAX_CAPACITY}) => {list(self.dq_store)}"


if __name__ == "__main__":
   import doctest

   doctest.testmod()

   _lowercase    	=		LRUCache(4)
   lru_cache.refer("A")
   lru_cache.refer(2)
   lru_cache.refer(3)
   lru_cache.refer("A")
   lru_cache.refer(4)
   lru_cache.refer(5)
   lru_cache.display()

   print(lru_cache)
   assert str(lru_cache) == "LRUCache(4) => [5, 4, 'A', 3]"





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



def 		lowerCAmelCase__     (       UpperCamelCase_					:							int			,							UpperCamelCase_					:							int			,							UpperCamelCase_					:							list[int]			,							UpperCamelCase_					:							int						)->	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 //= 1_0

        return 1

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

        A__					=       0
        for digit in range(1_0						):
            A__					=       digit
            result += reversible_numbers(
                0			,							(remainder + 2 * digit) // 1_0			,							UpperCamelCase_			,							UpperCamelCase_						)
        return result

    A__					=       0
    for digita in range(1_0						):
        A__					=       digita

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

        for digita in other_parity_digits:
            A__					=       digita
            result += reversible_numbers(
                remaining_length - 2			,							(remainder + digita + digita) // 1_0			,							UpperCamelCase_			,							UpperCamelCase_			,							)
    return result



def 		lowerCAmelCase__     (       UpperCamelCase_					:							int = 9						)->	int:
    A__					=       0
    for length in range(1			,							max_power + 1						):
        result += reversible_numbers(UpperCamelCase_			,							0			,							[0] * length			,							UpperCamelCase_						)
    return result


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