caaaar ... cddddr

(c????r list)

The car and cdr functions can be combined up to four levels in one function.

Examples

: (setq x (list (list (list (list 1 2) 3 4) 5 6) 7 8))

((((1 2) 3 4) 5 6) 7 8)

: (caaaar x)

1

: (cdaaar x)

(2)

: (cdar x)

(5 6)

: (setq x (list (list 1 2) 3 4))

((1 2) 3 4)

: (cadr x)

3