*     *  *     *  *     *  *     *  *     *  
 *   *    *   *   *     *   *   *    *   *   
  * *      * *    *     *    * *      * *    
   *        *     *  *  *     *        *     
   *        *     * * * *    * *      * *    
   *        *     **   **   *   *    *   *   
   *        *     *     *  *     *  *     *