

from __future__ import annotations

from random import choice


def        __lowerCAmelCase    (       _UpperCamelCase		:  Optional[int]	)		->							int:
 '''simple docstring'''


 return choice(_UpperCamelCase	)


def        __lowerCAmelCase    (       _UpperCamelCase		:  Tuple		,							_UpperCamelCase		:  List[str]	)		->							int:
 '''simple docstring'''


 SCREAMING_SNAKE_CASE								=			random_pivot(_UpperCamelCase	)

 # partition based on pivot
 # linear time
 SCREAMING_SNAKE_CASE								=			[e for e in lst if e < pivot]
 SCREAMING_SNAKE_CASE								=			[e for e in lst if e > pivot]

 # if we get lucky, pivot might be the element we want.
 # we can easily see this:
 # small (elements smaller than k)
 # + pivot (kth element)
 # + big (elements larger than k)
 if len(_UpperCamelCase	) == k - 1:
  return pivot
 # pivot is in elements bigger than k
 elif len(_UpperCamelCase	) < k - 1:
  return kth_number(_UpperCamelCase		,							k - len(_UpperCamelCase	) - 1	)
 # pivot is in elements smaller than k
 else:
  return kth_number(_UpperCamelCase		,							_UpperCamelCase	)


if __name__ == "__main__":
      import doctest

      doctest.testmod()









def        __lowerCAmelCase    (       _UpperCamelCase		:  str		,							_UpperCamelCase		:  int	)		->							list[str]:
 '''simple docstring'''


 return [sentence[i : i + ngram_size] for i in range(len(_UpperCamelCase	) - ngram_size + 1	)]


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

      testmod()

