input: Write a function to print the absolute difference between two given numbers.
  def absolute_difference(A, B): 
      return abs(A - B) 
  
  assert absolute_difference(9, 5) == 4
  assert absolute_difference(12, -3) == 15
  assert absolute_difference(0, 0) == 0
  assert absolute_difference(-7, -3) == 4
  assert absolute_difference(-7, 3) == 10
output: def absolute_difference(A, B): 
      return abs(A - B)