let list_of_string str =
  let l = String.length str in
  let rec iter i lst =
    if i >= l then lst
    else iter (i+1) ((int_of_char str.[i] - 48) :: lst) in
  iter 0 []
let rec include3 n m =
    if n > m then []
    else if List.mem 3 (list_of_string (string_of_int n)) || n mod 3 = 0 then string_of_int n :: include3 (n+1) m
    else include3 (n+1) m
let () =
    let n, m = Scanf.scanf "%d %d\n" (fun a b -> a, b) in
    let lst = include3 n m in
    List.iter print_endline lst