import java.util.*

fun main(args: Array<String>) {
    val scanner = Scanner(System.`in`)
    val s = scanner.next()

    val ret = when (s) {
        "Sunny" -> "Cloudy"
        "Cloudy" -> "Rainy"
        "Rainy" -> "Sunny"
        else -> null
    }

    println(ret)
}