(let (
      (From (read (current-input-port)))
      (To      (read (current-input-port)))
      )
    (let loop((i From))
        (begin
            (when (or  (= (modulo i 3) 0 ) (= (CheckThree i) #t))
                (begin (display i) (newline)))
            (unless (= i To)
                (loop (+ i 1)))
        )
    )
)

(define (CheckThree x)
    (let loop(x)
        (if (= (modulo x 10) 3))
            #t
            (unless (<= x 3)
                (loop (floor (/ x 10))))))