; trebuie selectat limbajul Pretty Big

(define x 0)
(define f (lambda () x))
(f)
(define x 1)
(f)



(define factorial (lambda (n)
    (if (zero? n) 1
        (* n (factorial (- n 1))))))

(factorial 5)

(define g factorial)
(define factorial (lambda (x) x))

(g 5)