anchor.diff:  	)
   
   ;QUESTION FOUR
  +;Need documentation about each function
   	(defun split (L)
   		(cond 
   			((null L) '(nil nil))
  
positive.code: 	)
  
  ;QUESTION TWO
  	(defun flatten (X)
  		(cond 
  			((null X) nil)
  
negative.code: 	)
  
  ;QUESTION THREE
  ;Need documentation about each function
  	(defun mix (L1 L2)
  		(cond
  			((null L2) L1)
  