.£.....£.£                                          £.£..££...
..£.......                                          ...£.£££..
...£......                                          .....£.££.
....£.....                                          .......£££
£....£....                                          £......£.£
££....£...                                          .£.......£
.££....£..                                          ..£......£
.£££....£.                                          £..£......
.£.££....£                                          .£..£.....
...£££....                                          ..£..£....
...£.££...                                          ...£..£...