Scanf.scanf "%d %d" (fun n k ->
    let a = Array.init n (fun _ -> Scanf.scanf " %d" (fun a -> a)) in
    let module S = Set.Make (struct type t = int let compare = compare end) in

    let rec loop i set =
        if i = n then S.max_elt set else
            let set = S.fold (fun v set -> if v + a.(i) <= k then S.add (v + a.(i)) set else set) set set in
            loop (i + 1) set
    in
    loop 0 (S.singleton 0) |> Printf.printf "%d\n"
)