3 (println "Hello World!")
5 (println '(println "Hello World!"))
7 (println (eval (quote (println "Hello World!"))))
9 (if true (println "Hello") (println "Goodbye"))
12 (set 'world " World!")
42 (println '((x 1) (y 2)))
44 (println (first '(x 1)))
45 (println (last '(x 1)))
47 (println (first '((x 1) (y 2))))
50 (println (assoc 'x '((x 1) (y 2) (x 3))))
52 (println (lookup 'x '((x 1) (y 2) (x 3))))