*

                                     *

           *            

         *             *                   *                        *                       *         

*          *                         *              *             *     

*                       *                                 *              

                                    *       

                *        *    *         *       *             *     *   *      *   *    

*                    *       *            *              *              *        *        *       

                                                         *                  *

                    *                       *                                     

*                                  *                                                               *

                                                    *                              *

                                                    *                              *