'''simple docstring'''

import os
import unittest

from transformers import LayoutLMTokenizer, LayoutLMTokenizerFast
from transformers.models.layoutlm.tokenization_layoutlm import VOCAB_FILES_NAMES
from transformers.testing_utils import require_tokenizers

from ...test_tokenization_common import TokenizerTesterMixin






@require_tokenizers
class        a_		(    lowerCamelCase			, unittest.TestCase       ):
  lowercase  	=   LayoutLMTokenizer
  lowercase  	=   LayoutLMTokenizerFast
  lowercase  	=   True
  lowercase  	=   True

  def 						A__		(   self   )						->   Tuple:



        """simple docstring"""






        super().setUp()

        UpperCamelCase       						=      [
            """[UNK]""",
            """[CLS]""",
            """[SEP]""",
            """want""",
            """##want""",
            """##ed""",
            """wa""",
            """un""",
            """runn""",
            """##ing""",
            """,""",
            """low""",
            """lowest""",
        ]
        UpperCamelCase       						=      os.path.join(self.tmpdirname    ,	VOCAB_FILES_NAMES["""vocab_file"""]   )
        with open(self.vocab_file    ,	"""w"""    ,	encoding="""utf-8"""   ) as vocab_writer:
              vocab_writer.write("""""".join([x + """\n""" for x in vocab_tokens]   )   )

  def 						A__		(   self    ,	**_SCREAMING_SNAKE_CASE   )						->   Tuple:



        """simple docstring"""






        return LayoutLMTokenizer.from_pretrained(self.tmpdirname    ,	**_SCREAMING_SNAKE_CASE   )

  def 						A__		(   self    ,	_SCREAMING_SNAKE_CASE   )						->   Optional[int]:



        """simple docstring"""






        UpperCamelCase       						=      """UNwant\u00E9d,running"""
        UpperCamelCase       						=      """unwanted, running"""
        return input_text, output_text

  def 						A__		(   self   )						->   Union[str, Any]:



        """simple docstring"""






        UpperCamelCase       						=      self.tokenizer_class(self.vocab_file   )

        UpperCamelCase       						=      tokenizer.tokenize("""UNwant\u00E9d,running"""   )
        self.assertListEqual(_SCREAMING_SNAKE_CASE    ,	["""un""", """##want""", """##ed""", """,""", """runn""", """##ing"""]   )
        self.assertListEqual(tokenizer.convert_tokens_to_ids(_SCREAMING_SNAKE_CASE   )    ,	[7, 4, 5, 10, 8, 9]   )


  def 						A__		(   self   )						->   Union[str, Any]:



        """simple docstring"""






        pass








'''simple docstring'''

from math import factorial







def 					lowercase__				(   __UpperCamelCase = 20					)->				int:
      UpperCamelCase       						=      2 * n  # middle entry of odd rows starting at row 3 is the solution for n = 1,
      # 2, 3,...
      UpperCamelCase       						=      n // 2

      return int(factorial(__UpperCamelCase					) / (factorial(__UpperCamelCase					) * factorial(n - k					))					)


if __name__ == "__main__":
     import sys

     if len(sys.argv) == 1:
          print(solution(2_0))
     else:
          try:
               SCREAMING_SNAKE_CASE__											=     int(sys.argv[1])
               print(solution(n))
          except ValueError:
               print('Invalid entry - please enter a number.')
