let () =
  Scanf.scanf "%d\n%d\n" @@ fun l n ->
  let w = Array.init n @@ fun _ -> Scanf.scanf "%d " @@ fun d -> d in
  let _ = Array.fast_sort compare w in
  let w = Array.to_list w in
  let (ans,_) = List.fold_left (fun (a,sum) x -> if sum + x <= l then (a+1,sum+x) else (a, sum)) 
      (1,List.hd w) (List.tl w) in
  Printf.printf "%d\n" ans