const chunks = [];
process.stdin.on("data", chunk => {
  chunks.push(chunk);
});
process.stdin.on("end", () => {
  const body = Buffer.concat(chunks).toString("utf8");
  main(body.trim());
});

function main(data) {
  switch (data) {
    case "Sunny":
      console.log("Cloudy");
      break;
    case "Cloudy":
      console.log("Rainy");
      break;
    case "Rainy":
      console.log("Sunny");
      break;
  }
}
