function Main(input) {
  var ary = ['Sunny', 'Cloudy', 'Rainy'];
  var i = ary.indexOf(input);
  if (i > -1) {
    i = i == 2 ? 0: i + 1;
    console.log(ary[i]);
  }
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));
