input: Write a function to return the absolute difference between two given numbers.
  def absolute_difference(A, B):
      return abs(A - B)
  
  # Testing the function
  assert absolute_difference(9, 5) == 4
  assert absolute_difference(5, 9) == 4
  assert absolute_difference(-5, -3) == 2
  assert absolute_difference(0, 0) == 0
  assert absolute_difference(-7, 7) == 14
output: def absolute_difference(A, B):
      return abs(A - B)