






"""simple docstring"""


from __future__ import annotations

from collections.abc import Generator



def    lowerCAmelCase							(       __UpperCamelCase					):




  """simple docstring"""







  if not isinstance(__UpperCamelCase						,			__UpperCamelCase					) or n < 1:
    raise Exception('''Sequence only defined for positive integers'''					)

  yield n
  while n != 1:
    if n % 2 == 0:
      n //= 2
    else:
      __A		     =					3 * n + 1
    yield n



def    lowerCAmelCase							(       ):




  """simple docstring"""







  __A		     =					4_3
  __A		     =					tuple(collatz_sequence(__UpperCamelCase					)					)
  print(__UpperCamelCase					)
  print(f'Collatz sequence from {n} took {len(__UpperCamelCase					)} steps.'					)


if __name__ == "__main__":
       main()











"""simple docstring"""




def 			a_							(				_lowercase  ):
						_UpperCamelCase     :   List[str]      =       []
						_UpperCamelCase     :   Union[str, Any]      =       1

						for i in range(len(_lowercase  )  ):
												if i + 1 < len(_lowercase  ) and text[i] == text[i + 1]:
																		count += 1
												else:
																		encoded.append((text[i], count)  )
																		_UpperCamelCase     :   int      =       1

						return encoded





def 			a_							(				_lowercase  ):
						return "".join(char * length for char, length in encoded  )


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

						testmod(name="""run_length_encode""", verbose=True)
						testmod(name="""run_length_decode""", verbose=True)



