public static String getAnswers(int k) {
        int round = Server_Loader.round;
        try {
            Config config = Server_Loader.questions_data;
            int i = 1;
            StringBuilder sb = new StringBuilder();
            while(config.isSet("Answer#" + round + "#" + k + "#" + i)) {
                sb.append(config.getString("Answer#" + round + "#" + k + "#" + i)).append("#");
                ++i;
            }
            return sb.toString();
        }catch(Exception ex) {
            warn("Can't get answers for question " + k + " (contest " + Server_Loader.contestName + ", round " + round + ")", false);
            ex.printStackTrace();
            warn("", true);
            return null;
        }
    }