input: Write a function to print the absolute difference between two given numbers. If the given numbers are A and B, the function should 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(-10, 5)==15
  assert absolute_difference(0, 0)==0
  assert absolute_difference(7, -3)==10
  assert absolute_difference(-8, -2)==6
output: def absolute_difference(A, B): 
      return abs(A - B)