






"""simple docstring"""





from itertools import combinations, product






def     A(  snake_case_						,       snake_case_						,       snake_case_						,       snake_case_		):
       """simple docstring"""





       if xa == ya == 0 or xa == ya == 0:
              return False
       lowercase__:    List[str]        =      xa * xa + ya * ya
       lowercase__:    Dict        =      xa * xa + ya * ya
       lowercase__:    str        =      (xa - xa) * (xa - xa) + (ya - ya) * (ya - ya)
       return (
           a_square + b_square == c_square
           or a_square + c_square == b_square
           or b_square + c_square == a_square
       )






def     A(  snake_case_ = 50		):
       """simple docstring"""





       return sum(
           1
           for pta, pta in combinations(product(range(limit + 1		)						,       repeat=2		)						,       2		)
           if is_right(*snake_case_						,       *snake_case_		)		)


if __name__ == "__main__":
  print(F"{solution() = }")














"""simple docstring"""





def     A(  snake_case_		):
       """simple docstring"""





       if not isinstance(snake_case_						,       snake_case_		):
              raise ValueError("Input series is not valid, valid series - [1, 2/3, 2]"		)
       if len(snake_case_		) == 0:
              raise ValueError("Input list must be a non empty list"		)
       if len(snake_case_		) == 1 and series[0] != 0:
              return True
       lowercase__:    str        =      []
       lowercase__:    Optional[int]        =      len(snake_case_		)
       for i in range(0						,       snake_case_		):
              if series[i] == 0:
                     raise ValueError("Input series cannot have 0 as an element"		)
              rec_series.append(1 / series[i]		)
       lowercase__:    Optional[int]        =      rec_series[1] - rec_series[0]
       for index in range(2						,       snake_case_		):
              if rec_series[index] - rec_series[index - 1] != common_diff:
                     return False
       return True






def     A(  snake_case_		):
       """simple docstring"""





       if not isinstance(snake_case_						,       snake_case_		):
              raise ValueError("Input series is not valid, valid series - [2, 4, 6]"		)
       if len(snake_case_		) == 0:
              raise ValueError("Input list must be a non empty list"		)
       lowercase__:    Optional[int]        =      0
       for val in series:
              answer += 1 / val
       return len(snake_case_		) / answer


if __name__ == "__main__":
  import doctest

  doctest.testmod()






