import java.io.{BufferedReader, InputStreamReader}

object Abc141A {
  def main(args: Array[String]): Unit = {
    val weather = new BufferedReader(new InputStreamReader(System.in)).readLine()
    System.out.println(
      weather match {
        case "Sunny" => "Cloudy"
        case "Cloudy" => "Rainy"
        case "Rainy" => "Sunny"
        case _ => ""
      }
    )
  }
}
