let split_on_char sep s =
  let r = ref [] in
  let j = ref (String.length s) in
  for i = String.length s - 1 downto 0 do
    if String.unsafe_get s i = sep then begin
      r := String.sub s (i + 1) (!j - i - 1) :: !r;
      j := i
    end
  done;
  String.sub s 0 !j :: !r;;

let () =
  let raw = read_line () |> split_on_char ' ' |> List.map int_of_string |> List.fast_sort compare in
  print_string (if (List.hd raw |> (fun x -> ((List.fold_left (+) 0 raw) - 6) = (x * 4))) then "Yes" else "No"); print_newline ();;