1) Consider the function given below which accepts a nested list of integers and returns the sum of all the integers: (defun f3 (x) (if nullx) 0 if atom (car x) (+ (car x) (f3 (cdr x))) (+ (f3 (car x)) (f3 (cdr x))) Show the evolution resulting from the following call to the above function: LISP (f3 (2 1 4) 1))