


'''simple docstring'''







from __future__ import annotations

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

a__  :					List[str]        =       TypeVar('T')
class 					lowercase_     (    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    ):
          UpperCamelCase__										=				deque()
          UpperCamelCase__										=				set()
          if not n:
                UpperCamelCase__										=				sys.maxsize
          elif n < 0:
                raise ValueError("n should be an integer greater than 0."    )
          else:
                UpperCamelCase__										=				n


    def    __a							(     self  ,					a    ):
          if x not in self.key_reference:
                if len(self.dq_store    ) == LRUCache._MAX_CAPACITY:
                      UpperCamelCase__										=				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    __a							(     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()

  a__  :					LRUCache[str | int]        =       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]"









'''simple docstring'''






def 				UpperCamelCase_			(    A__					:   str							,    A__					:   list[str]					):
  '''simple docstring'''





  lowerCAmelCase_			:      Dict			=   """"""
  for word_or_phrase in separated:
    if not isinstance(A__							,    A__					):
      raise Exception("""join() accepts only strings to be joined"""					)
    joined += word_or_phrase + separator
  return joined.strip(A__					)


if __name__ == "__main__":
  from doctest import testmod

  testmod()



