"use strict"
 
const arg_str = require('fs').readFileSync('/dev/stdin', 'UTF-8')
const s = arg_str
 
if(s == "Sunny"){
    console.log("Cloudy")
}else if(s == "Cloudy"){
    console.log("Rainy")
}else if("Rainy"){
    console.log("Sunny")
}else{
}