defmodule Main do
  def main do
    1..(IO.read(:line)
        |> String.trim()
        |> String.to_integer())
    |> Enum.map(fn _ -> IO.read(:line) |> String.split() end)
    |> solve
    |> IO.puts()
  end

  def solve(w) do
    solve_rec(w, 0..9 |> Enum.to_list())
  end

  def solve_rec([], c) do
    c |> hd
  end

  def solve_rec(w, c) do
    n = w |> hd |> Enum.slice(0..3) |> Enum.map(&String.to_integer/1)

    solve_rec(
      w |> tl,
      cond do
        w |> hd |> List.last() == "YES" -> c -- c -- n
        true -> c -- n
      end
    )
  end
end