(car lst)— Grabs the first element of lst.
(cdr lst)— Grabs all but the first element of lst.
(cons val lst)— Create a new list by adding val to the front of lst.
(list-ref lst pos)— Grabs the element at index pos from lst. Elements in lists are
indexed starting at 0, so (list-ref lst 0) grabs the first element
of the list.
(list val_1 ... val_n)— Create a list from the specified values.