defmodule Main do
  def main do
    k =
      IO.gets("")
      |> String.trim()
      |> String.to_integer()

    s =
      IO.gets("")
      |> String.trim()
      |> String.to_integer()

    (100 * s / (100 - k))
    |> Float.floor()
    |> trunc
    |> IO.puts()
  end
end