(   )-------+-------(   )-------+-------(   )
                          . |                 . |                 . |
                        ,   |               ,   |               ,   |
                      .     |             .     |             .     |
                  (   )-------+-------(   )-------+-------(   )     |
                  . |       +         . |       +         . |       +
                ,   |       |       ,   |       |       ,   |       |
              .     |       |     .     |       |     .     |       |
          (   )-------+-------(   )-------+-------(   )     |       |
            |       +       |   |       +       |   |       +       |
            |       |     (   )-|-----+-|-----(   )-|-----+-|-----(   )
            |       |     . |   |       |     . |   |       |     . |
            |       |   ,   |   |       |   ,   |   |       |   ,   |
            +       | .     |   +       | .     |   +       | .     |
            |     (   )-------+-|-----(   )-------+-|-----(   )     |
            |     . |       +   |     . |       +   |     . |       +
            |   ,   |       |   |   ,   |       |   |   ,   |       |
            | .     |       |   | .     |       |   | .     |       |
          (   )-------+-------(   )-------+-------(   )     |       |
            |       +       |   |       +       |   |       +       |
            |       |     (   )-|-----+-|-----(   )-|-----+-|-----(   )
            |       |     . |   |       |     . |   |       |     . |
            |       |   ,   |   |       |   ,   |   |       |   ,   |
            +       | .     |   +       | .     |   +       | .     |
            |     (   )-------+-|-----(   )-------+-|-----(   )     |
            |     . |       +   |     . |       +   |     . |       +
            |   ,   |       |   |   ,   |       |   |   ,   |       |
            | .     |       |   | .     |       |   | .     |       |
          (   )-------+-------(   )-------+-------(   )     |       |
            |       +       |   |       +       |   |       +       |
            |       |     (   )-|-----+-|-----(   )-|-----+-|-----(   )
            |       |     .     |       |     .     |       |     .
            |       |   ,       |       |   ,       |       |   ,
            +       | .         +       | .         +       | .
            |     (   )-------+-|-----(   )-------+-|-----(   )
            |     .             |     .             |     .
            |   ,               |   ,               |   ,
            | .                 | .                 | .
          (   )-------+-------(   )-------+-------(   )