;; Given the definitions below $($LOWER$,$ UPPER and foo$),$

;; write the step$-$by$-$step evaluation of the following expression:

;;

;; $($foo $(*34)(+02))$

;;

;; Be sure to show every intermediate evaluation step, including the original

;; expression and the final result. The steps should NOT be in comments.

;;

;; Stepping questions like this one have only one correct answer. The goal

;; of this problem is to assess whether you have learned the exact BSL step

;; by step evaluation rules; not whether you can figure out the final

;; result of an expression.