import java.util.Scanner;

public class Demo {
    public static void main(String[] args) {
        // Date d = new Date (14, 9, 2025);
        System.out.print("Donnez la date : ");
        Scanner sc = new Scanner(System.in);
        String dt = sc.next();
        Date d = Date.parseDate(dt);
        System.out.println("Hello, world on the " + d + " !");
        System.out.println("Nous sommes un " + d.nomJour() + ".");
        d.avance();
        System.out.print("Demain sera le " + d + ", ");
        System.out.println("nous serons un " + d.nomJour() + ".");
    }
}