;; Print some numbers. (loop for i from 1 to 3 do (print i))|>
1|>
2|>
3 ⇒ NIL ;; Print every third number. (loop for i from 10 downto 1 by 3 do (print i))|>
10|>
7|>
4|>
1 ⇒ NIL ;; Step incrementally from the default starting value. (loop for i below 3 do (print i))|>
0|>
1|>
2 ⇒ NIL