


def 	_lowerCamelCase  (		A_  :	str      )			->			list:

   '''simple docstring'''






   UpperCamelCase__ :			Union[str, Any] 						=[]
   UpperCamelCase__ :			Optional[int] 						=1

   for i in range(len(A_      )      ):
      if i + 1 < len(A_      ) and text[i] == text[i + 1]:
         count += 1
      else:
         encoded.append((text[i], count)      )
         UpperCamelCase__ :			str 						=1

   return encoded
def 	_lowerCamelCase  (		A_  :	list      )			->			str:

   '''simple docstring'''






   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)





def 	_lowerCamelCase  (		A_  :	float							,  A_  :	float							,  A_  :	int      )			->			float:

   '''simple docstring'''






   UpperCamelCase__ :			Union[str, Any] 						=[1 / first_term]
   UpperCamelCase__ :			Tuple 						=1 / first_term
   for _ in range(number_of_terms - 1      ):
      first_term += common_difference
      arithmetic_progression.append(A_      )
   UpperCamelCase__ :			List[str] 						=[1 / step for step in arithmetic_progression]
   return sum(A_      )


if __name__ == "__main__":
     import doctest

     doctest.testmod()
     print(sum_of_harmonic_progression(1 / 2, 2, 2))

