Welcome to DrRacket, version 6.8 [3m].
Language: racket, with debugging; memory limit: 128 MB.
> '(1 2 3 4 5)
'(1 2 3 4 5)
> '(1 2 3 (+ 1 3) 5)
'(1 2 3 (+ 1 3) 5)
> `(1 2 3 (+ 1 3) 5)
'(1 2 3 (+ 1 3) 5)
> `(1 2 3 ,(+ 1 3) 5)
'(1 2 3 4 5)
> (backquote (1 2 3 ,(+ 1 3) 5))
. unquote: not in quasiquote in: (unquote (+ 1 3))
> (quasiquote (1 2 3 (unquote (+ 1 3)) 5))
'(1 2 3 4 5)
> `(1 2 3 ,(+ 1 3) (+ 2 3))
'(1 2 3 4 (+ 2 3))
> (let ((a 'ceva)) `(1 2 3 ,(+ 1 3) (+ 2 3) a))
'(1 2 3 4 (+ 2 3) a)
> (let ((a 'ceva)) `(1 2 3 ,(+ 1 3) (+ 2 3) ,a))
'(1 2 3 4 (+ 2 3) ceva)
>