Decipherer.java

public class  Decipherer {
  
  public static String automatisation(String code){
    
    int longueur = code.length() / 2;
    String substr = code.substring(5,(longueur+5));
    String replace = substr.replace("@#?"," ");
    String reverse = new StringBuilder(replace).reverse().toString();
    return reverse;
    
  }
  
  
  public static void main(String[] args) {
    
    String firstCode =  "0@sn9sirppa@#?ia'jgtvryko1";
    String secondCode = "q8e?wsellecif@#?sel@#?setuotpazdsy0*b9+mw@x1vj";
    String thirdCode = "aopi?sedohtém@#?sedhtmg+p9l!";
    System.out.println(automatisation(firstCode)+" "+(automatisation(secondCode))+" "+(automatisation(thirdCode)));

    
  }
  
  
}