#!/usr/local/bin/sbcl --script
(print (loop for i from 1 to 30
 collect
 (cond
  ((= 0 (mod i 15)) "FizzBuzz")
  ((= 0 (mod i 3)) "Fizz")
  ((= 0 (mod i 5)) "Buzz")
  (t i))))

(defun perfectp (n)
  (= n (loop for i from 1 below n when (= 0 (mod n i)) sum i)))

(print (perfectp 6))