






'''simple docstring'''







def     A__      (					__lowerCAmelCase		:      str ,     __lowerCAmelCase		:      str    ):
						if len(__lowerCAmelCase    ) != len(__lowerCAmelCase    ):
												raise ValueError("""String lengths must match!"""    )

						lowerCamelCase__								=	0

						for chara, chara in zip(__lowerCAmelCase ,     __lowerCAmelCase    ):
												if chara != chara:
																		count += 1

						return count


if __name__ == "__main__":
							import doctest

							doctest.testmod()




import re

from filelock import FileLock


try:
      import nltk

      a_     :    Optional[Any]     		=   True
except (ImportError, ModuleNotFoundError):
      a_     :    Union[str, Any]     		=   False

if NLTK_AVAILABLE:
      with FileLock(".lock") as lock:
            nltk.download("punkt", quiet=True)


def 							__lowerCAmelCase     (							_UpperCamelCase		:	str						)		->				str:
 '''simple docstring'''


 re.sub('<n>'		,				''		,				_UpperCamelCase						)  # remove pegasus newline char
 assert NLTK_AVAILABLE, "nltk must be installed to separate newlines between sentences. (pip install nltk)"
 return "\n".join(nltk.sent_tokenize(_UpperCamelCase						)						)

