defmodule Main do
  def input, do: IO.read(:line) |> String.trim
  def ii, do: input() |> String.to_integer
  def li, do: input() |> String.split |> Enum.map(&String.to_integer/1)
  def yn(b), do: IO.puts(if b, do: "Yes", else: "No")

  def main do
    x = ii()
    cond do
      x in 3..5 -> "spring"
      x in 6..8 -> "summer"
      x in 9..11 -> "fall"
      x in [1, 2, 12] -> "winter"
    end
    |> IO.puts
  end
end