input: Write a function to print the absolute difference between two given numbers. The function should take two arguments and return the absolute value of their difference.
  
  def absolute_difference(A, B): 
      return abs(A - B) 
  
  assert absolute_difference(9, 5)==4
  assert absolute_difference(-3, 10)==13
  assert absolute_difference(0, 0)==0
  assert absolute_difference(-5, -8)==3
  assert absolute_difference(7, -2)==9
output: def absolute_difference(A, B): 
      return abs(A - B)