


def 						_lowercase       (     __lowerCamelCase			:					str		,__lowerCamelCase			:					str			)  ->   str:





     '''simple docstring'''





     if not isinstance(__lowerCamelCase		,__lowerCamelCase			):
          raise TypeError('''plaintext must be a string'''			)
     if not isinstance(__lowerCamelCase		,__lowerCamelCase			):
          raise TypeError('''key must be a string'''			)

     if not plaintext:
          raise ValueError('''plaintext is empty'''			)
     if not key:
          raise ValueError('''key is empty'''			)

     key += plaintext
     UpperCamelCase__							:  Dict								=     plaintext.lower()
     UpperCamelCase__							:  Optional[int]								=     key.lower()
     UpperCamelCase__							:  List[str]								=     0
     UpperCamelCase__							:  Dict								=     0
     UpperCamelCase__							:  Tuple								=     ''''''
     while plaintext_iterator < len(__lowerCamelCase			):
          if (
              ord(plaintext[plaintext_iterator]			) < 97
              or ord(plaintext[plaintext_iterator]			) > 122
          ):
               ciphertext += plaintext[plaintext_iterator]
               plaintext_iterator += 1
          elif ord(key[key_iterator]			) < 97 or ord(key[key_iterator]			) > 122:
               key_iterator += 1
          else:
               ciphertext += chr(
                   (
                       (ord(plaintext[plaintext_iterator]			) - 97 + ord(key[key_iterator]			))
                       - 97
                   )
                   % 26
                   + 97			)
               key_iterator += 1
               plaintext_iterator += 1
     return ciphertext







def 						_lowercase       (     __lowerCamelCase			:					str		,__lowerCamelCase			:					str			)  ->   str:





     '''simple docstring'''





     if not isinstance(__lowerCamelCase		,__lowerCamelCase			):
          raise TypeError('''ciphertext must be a string'''			)
     if not isinstance(__lowerCamelCase		,__lowerCamelCase			):
          raise TypeError('''key must be a string'''			)

     if not ciphertext:
          raise ValueError('''ciphertext is empty'''			)
     if not key:
          raise ValueError('''key is empty'''			)

     UpperCamelCase__							:  str								=     key.lower()
     UpperCamelCase__							:  Dict								=     0
     UpperCamelCase__							:  int								=     0
     UpperCamelCase__							:  Union[str, Any]								=     ''''''
     while ciphertext_iterator < len(__lowerCamelCase			):
          if (
              ord(ciphertext[ciphertext_iterator]			) < 97
              or ord(ciphertext[ciphertext_iterator]			) > 122
          ):
               plaintext += ciphertext[ciphertext_iterator]
          else:
               plaintext += chr(
                   (ord(ciphertext[ciphertext_iterator]			) - ord(key[key_iterator]			)) % 26
                   + 97			)
               key += chr(
                   (ord(ciphertext[ciphertext_iterator]			) - ord(key[key_iterator]			)) % 26
                   + 97			)
               key_iterator += 1
          ciphertext_iterator += 1
     return plaintext


if __name__ == "__main__":
   import doctest

   doctest.testmod()
   _SCREAMING_SNAKE_CASE :					Any			=	int(input("""Type 1 to encrypt or 2 to decrypt:"""))
   if operation == 1:
      _SCREAMING_SNAKE_CASE :					Optional[Any]			=	input("""Typeplaintext to be encrypted:\n""")
      _SCREAMING_SNAKE_CASE :					List[Any]			=	input("""Type the key:\n""")
      print(encrypt(plaintext, key))
   elif operation == 2:
      _SCREAMING_SNAKE_CASE :					List[str]			=	input("""Type the ciphertext to be decrypted:\n""")
      _SCREAMING_SNAKE_CASE :					Union[str, Any]			=	input("""Type the key:\n""")
      print(decrypt(ciphertext, key))
   decrypt("""jsqqs avvwo""", """coffee""")








from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available


_SCREAMING_SNAKE_CASE :					str			=	{
    """configuration_donut_swin""": ["""DONUT_SWIN_PRETRAINED_CONFIG_ARCHIVE_MAP""", """DonutSwinConfig"""],
    """processing_donut""": ["""DonutProcessor"""],
}

try:
   if not is_torch_available():
      raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
   pass
else:
   _SCREAMING_SNAKE_CASE :					List[Any]			=	[
       """DONUT_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST""",
       """DonutSwinModel""",
       """DonutSwinPreTrainedModel""",
   ]

try:
   if not is_vision_available():
      raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
   pass
else:
   _SCREAMING_SNAKE_CASE :					List[Any]			=	["""DonutFeatureExtractor"""]
   _SCREAMING_SNAKE_CASE :					Tuple			=	["""DonutImageProcessor"""]


if TYPE_CHECKING:
   from .configuration_donut_swin import DONUT_SWIN_PRETRAINED_CONFIG_ARCHIVE_MAP, DonutSwinConfig
   from .processing_donut import DonutProcessor

   try:
      if not is_torch_available():
         raise OptionalDependencyNotAvailable()
   except OptionalDependencyNotAvailable:
      pass
   else:
      from .modeling_donut_swin import (
          DONUT_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST,
          DonutSwinModel,
          DonutSwinPreTrainedModel,
      )

   try:
      if not is_vision_available():
         raise OptionalDependencyNotAvailable()
   except OptionalDependencyNotAvailable:
      pass
   else:
      from .feature_extraction_donut import DonutFeatureExtractor
      from .image_processing_donut import DonutImageProcessor

else:
   import sys

   _SCREAMING_SNAKE_CASE :					Optional[Any]			=	_LazyModule(__name__, globals()["""__file__"""], _import_structure, module_spec=__spec__)




