public class Decipherer {

/* Il faut :
	- calculer la longueur de la chaine
	- diviser par 2 = chiffrecle
	- remplacer @#? par " "
	- inverser la phrase
*/

	public static void main(String[] args) {

    String message1 = "0@sn9sirppa@#?ia'jgtvryko1";
		String message2 = "q8e?wsellecif@#?sel@#?setuotpazdsy0*b9+mw@x1vj";
		String message3 = "aopi?sedohtém@#?sedhtmg+p9l!";

		String msg1 = decodeur(message1);
		String msg2 = decodeur(message2);
		String msg3 = decodeur(message3);

		System.out.printf("Message 1 : %s;\nMessage 2 : %s;\nMessage 3 : %s\n", msg1, msg2, msg3);
	}

	public static String decodeur (String count){

    int chiffrecle = count.length() / 2;
		count = count.substring(5, (chiffrecle + 5));
		count = count.replace("@#?", " ");
    String solution = new StringBuffer(count).reverse().toString();

    return solution;
    }


}