* *       * *
        *   *     *   *
       *     *   *     *
      *       ***       *
      *   @    *    @   *
      *  @@@       @@@  *     +
      *   @         @   *   +
       *               *  +
        +++++++++++++++++++++++
         +++++++++++++
          +++++++++++
           +++++++++
            +++++++
             +++++
              +++
               +