let readln_t2_by f =
  let ( @@ ) lst n = List.nth lst n in
  read_line () |>
  Str.split (Str.regexp_string " ") |>
  List.map f |>
  fun lst -> (lst @@ 0, lst @@ 1)



let solve xp yp =
  match xp, yp with
  | 0, _ -> yp * 2 + 1
  | _, 0 -> xp * 2 + 1
  | _ ->
	  let r = xp * xp + yp * yp |> float_of_int |> sqrt in
	  let r2 = r |> ceil in
	  let ans = (int_of_float r2) * 2 in
	  if r < r2 then ans else ans + 1

let () =
  let xp, yp = readln_t2_by int_of_string in
  solve xp yp |> string_of_int |> print_endline