(list) -> 
(list 1) -> (1)
(list 1 2) -> (1 2)
(list 1 2 3) -> (1 2 3)
(list 4 5 (+ 1 2 3)) -> (4 5 6)
(car (list 1 2 3)) -> 1
(cdr (list 1 2 3)) -> (2 3)
(car (list (* 10 20) (+ 1 2 3) 50 60)) -> 200
(cdr (list (* 10 20) (+ 1 2 3) 50 60)) -> (6 50 60)
(car (cdr (list (* 10 20) (+ 1 2 3) 50 60))) -> 6
(cons 1 2) -> (1 . 2)
(cons "a" "b") -> ("a" . "b")
(cons "a" (cons "c" ())) -> ("a" "c")
(cons 1 (cons 2 (cons (+ 1 2) ()))) -> (1 2 3)
(cons 1 (cons 2 (cons (+ 1 2) 4))) -> (1 2 3 . 4)