







 






          X     X             DDDDDD     DDDDDD      OOOOO      SSSSS
           X   X              D     D    D     D    O     O    S
            X X               D     D    D     D    O     O    S
             X       =====    D     D    D     D    O     O     SSSSS
            X X               D     D    D     D    O     O          S
           X   X              D     D    D     D    O     O          S
          X     X             DDDDDD     DDDDDD      OOOOO      SSSSS 






 
                       2222          11         0000 
                      2   2         111        0    0
                     2   2         1 11        0    0
                        2            11        0    0
                       2             11        0    0
                      2              11        0    0
                     222222    .   111111       0000 








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