input: Write a function to print the absolute difference between two given numbers. If the input is 9 and 5, the output should be 4.
  
  def absolute_difference(A, B): 
      return abs(A - B) 
  
  assert absolute_difference(9, 5) == 4
  assert absolute_difference(-7, 3) == 10
  assert absolute_difference(0, 0) == 0
  assert absolute_difference(10, -10) == 20
  assert absolute_difference(3, 9) == 6
output: def absolute_difference(A, B): 
      return abs(A - B)