




'''simple docstring'''






from typing import Dict, List, Optional, Tuple

from ...tokenization_utils import AddedToken, PreTrainedTokenizer
from ...utils import logging


_lowerCAmelCase				     = logging.get_logger(__name__)



class  A		(			SCREAMING_SNAKE_CASE__		):




				'''simple docstring'''





				A				     =    ["input_ids", "attention_mask"]
				def __init__(self			,  _UpperCAmelCase="[PAD]"			,  _UpperCAmelCase="[BOS]"			,  _UpperCAmelCase="[EOS]"			,  _UpperCAmelCase="[MASK]"			,  _UpperCAmelCase="[CLS]"			,  _UpperCAmelCase="[SEP]"			,  _UpperCAmelCase=2_0_4_8			,  **_UpperCAmelCase			,  )     ->	None:
							__UpperCamelCase				:      Tuple									=       AddedToken(_UpperCAmelCase			,  lstrip=_UpperCAmelCase			,  rstrip=_UpperCAmelCase      ) if isinstance(_UpperCAmelCase			,  _UpperCAmelCase      ) else pad_token
							__UpperCamelCase				:      Any									=       AddedToken(_UpperCAmelCase			,  lstrip=_UpperCAmelCase			,  rstrip=_UpperCAmelCase      ) if isinstance(_UpperCAmelCase			,  _UpperCAmelCase      ) else bos_token
							__UpperCamelCase				:      str									=       AddedToken(_UpperCAmelCase			,  lstrip=_UpperCAmelCase			,  rstrip=_UpperCAmelCase      ) if isinstance(_UpperCAmelCase			,  _UpperCAmelCase      ) else eos_token
							__UpperCamelCase				:      List[str]									=       AddedToken(_UpperCAmelCase			,  lstrip=_UpperCAmelCase			,  rstrip=_UpperCAmelCase      ) if isinstance(_UpperCAmelCase			,  _UpperCAmelCase      ) else mask_token
							__UpperCamelCase				:      Any									=       AddedToken(_UpperCAmelCase			,  lstrip=_UpperCAmelCase			,  rstrip=_UpperCAmelCase      ) if isinstance(_UpperCAmelCase			,  _UpperCAmelCase      ) else cls_token
							__UpperCamelCase				:      Optional[int]									=       AddedToken(_UpperCAmelCase			,  lstrip=_UpperCAmelCase			,  rstrip=_UpperCAmelCase      ) if isinstance(_UpperCAmelCase			,  _UpperCAmelCase      ) else sep_token

							super().__init__(
							    pad_token=_UpperCAmelCase			,  bos_token=_UpperCAmelCase			,  eos_token=_UpperCAmelCase			,  mask_token=_UpperCAmelCase			,  cls_token=_UpperCAmelCase			,  sep_token=_UpperCAmelCase			,  model_max_length=_UpperCAmelCase			,  **_UpperCAmelCase			,  )

							__UpperCamelCase				:      int									=       2**8  # utf is 8 bits

							# define special tokens dict
							__UpperCamelCase				:      Dict[str, int]									=       {
							    self.pad_token: 0,
							    self.bos_token: 1,
							    self.eos_token: 2,
							    self.mask_token: 3,
							    self.cls_token: 4,
							    self.sep_token: 5,
							}
							__UpperCamelCase				:      List[Any]									=       len(self.special_tokens_encoder      )
							__UpperCamelCase				:      Dict[int, str]									=       {v: k for k, v in self.special_tokens_encoder.items()}
				def 	a_	(self      )     ->	Dict[str, int]:
							__UpperCamelCase				:      Any									=       self.special_tokens_encoder.copy()
							vocab.update(self.added_tokens_encoder      )
							for i in range(self._utf_vocab_size      ):
										__UpperCamelCase				:      List[str]									=       chr(_UpperCAmelCase      )
										__UpperCamelCase				:      Any									=       i + len(self.special_tokens_encoder      )
							return vocab
				@property
				def 	a_	(self      )     ->	Optional[Any]:
							return self._utf_vocab_size + self._num_special_tokens
				def 	a_	(self			,  _UpperCAmelCase			,  _UpperCAmelCase = None			,  _UpperCAmelCase = False      )     ->	List[int]:
							if already_has_special_tokens:
										return super().get_special_tokens_mask(
										    token_ids_a=_UpperCAmelCase			,  token_ids_a=_UpperCAmelCase			,  already_has_special_tokens=_UpperCAmelCase      )

							# normal case: some special tokens
							if token_ids_a is None:
										return [1] + [0] * len(_UpperCAmelCase      ) + [1]
							return [1] + ([0] * len(_UpperCAmelCase      )) + [1] + ([0] * len(_UpperCAmelCase      )) + [1]
				def 	a_	(self			,  _UpperCAmelCase			,  _UpperCAmelCase = None      )     ->	List[int]:
							if token_ids_a is None:
										return [self.cls_token_id] + token_ids_a + [self.sep_token_id]
							else:
										return [self.cls_token_id] + token_ids_a + [self.sep_token_id] + token_ids_a + [self.sep_token_id]
				def 	a_	(self			,  _UpperCAmelCase      )     ->	List[str]:
							__UpperCamelCase				:      Dict									=       [chr(_UpperCAmelCase      ) for i in text.encode("utf-8"      )]
							return tokens
				def 	a_	(self			,  _UpperCAmelCase      )     ->	int:
							if token in self.special_tokens_encoder:
										__UpperCamelCase				:      str									=       self.special_tokens_encoder[token]
							elif token in self.added_tokens_encoder:
										__UpperCamelCase				:      Dict									=       self.added_tokens_encoder[token]
							elif len(_UpperCAmelCase      ) != 1:
										__UpperCamelCase				:      Optional[Any]									=       self.unk_token_id
							else:
										__UpperCamelCase				:      Tuple									=       ord(_UpperCAmelCase      ) + self._num_special_tokens
							return token_id
				def 	a_	(self			,  _UpperCAmelCase      )     ->	Union[str, Any]:
							if index in self.special_tokens_decoder:
										__UpperCamelCase				:      Optional[int]									=       self.special_tokens_decoder[index]
							elif index in self.added_tokens_decoder:
										__UpperCamelCase				:      str									=       self.added_tokens_decoder[index]
							else:
										__UpperCamelCase				:      Any									=       chr(index - self._num_special_tokens      )
							return token
				def 	a_	(self			,  _UpperCAmelCase      )     ->	Dict:
							__UpperCamelCase				:      int									=       B""
							for token in tokens:
										if token in self.special_tokens_decoder:
													__UpperCamelCase				:      Dict									=       self.special_tokens_decoder[token].encode("utf-8"      )
										elif token in self.added_tokens_decoder:
													__UpperCamelCase				:      Optional[Any]									=       self.special_tokens_decoder[token].encode("utf-8"      )
										elif token in self.special_tokens_encoder:
													__UpperCamelCase				:      Union[str, Any]									=       token.encode("utf-8"      )
										elif token in self.added_tokens_encoder:
													__UpperCamelCase				:      List[Any]									=       token.encode("utf-8"      )
										else:
													__UpperCamelCase				:      Union[str, Any]									=       bytes([ord(_UpperCAmelCase      )]      )
										bstring += tok_string
							__UpperCamelCase				:      Dict									=       bstring.decode("utf-8"			,  errors="replace"      )
							return string





				def 	a_	(self			,  _UpperCAmelCase			,  _UpperCAmelCase = None      )     ->	Tuple[str]:
							return ()









'''simple docstring'''






def       __lowerCAmelCase (   snake_case__ = 4_000_000						):
			__UpperCamelCase				:      Tuple									=       1
			__UpperCamelCase				:      int									=       2
			__UpperCamelCase				:      str									=       0
			while j <= n:
						if j % 2 == 0:
									total += j
						__UpperCamelCase		, __UpperCamelCase				:      List[Any]									=       j, i + j

			return total


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



