(let ([n (read)])
  (let loop ([i 0])
    (if (= i n)
	0
	(let ([t (+ i 1)] [r ""])
	  (if (= 0 (mod t 3)) (set! r "Fizz"))
	  (if (= 0 (mod t 5)) (set! r (string-append r "Buzz")))
	  (if (equal? r "") (set! r t))
	  (display r)
	  (newline)
	  (loop (+ i 1))))))