#| This exercise has no tests.
Any solution is a right answer. |#
; First one is recursive
; (+ 4 5)
; (inc (+ 3 5))
; (inc (inc (+ 2 5)))
; (inc (inc (inc (+ 1 5))))
; (inc (inc (inc (inc (+ 0 5)))))
; (inc (inc (inc (inc 5))))
; (inc (inc (inc 6)))
; (inc (inc 7))
; (inc 8)
; 9

; Second one is iterative
; (+ 4 5)
; (+ 3 6)
; (+ 2 7)
; (+ 1 8)
; (+ 0 9)
; 9