public static final String getName(final byte level) {
        switch (level) {
            case 0:
                return "Rookie";
            case 1:
                return "Genin";
            case 2:
                return "Chunin";
            case 3:
                return "Jounin";
            case 4:
                return "Sannin";
            case 5:
                return "Hokage";
            default:
                return "SystemError";

        }
    }