(let ((n (read))
      (z 0))
  (let loop((foo 3))
    (if (> foo n)
        (begin (display z) (newline))
          (begin
            (when (= (modulo foo 3) 0)
              (set! z (+ z 2)))
            (when (= (modulo foo 5) 0)
              (set! z (+ z 2)))
            (loop (+ foo 1))
          )
    )
  )
)