import java.util.Scanner;

public class Main {
	public static void main(String[] args){

      Scanner sc = new Scanner(System.in);
		String text = sc.next();

		switch(text) {
		case "Sunny":
			System.out.println("Cloudy");
			break;
		case "Cloudy":
			System.out.println("Rainy");
			break;
		case "Rainy":
			System.out.println("Sunny");
			break;
		default:
			System.out.println("Error");
		}
	}
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz