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x                                                                   x
x                          * P                                      x
x                         bbbbb                                  *  x
x                *                       *                     bbbbbx
x              bbbbb                  bbbbb                         x
x                          *                             *          x
x                                                       bbbbb       x
x        *                               *        *                 x
x      bbbbb      *      *     *               bbbbb                x
x                                                                   x
x                *                      *                           x
x             bbbbb                    bbbbb                        x
x                           *                    *                  x
x                           *                  bbbbb                x
x                        bbbbb                           *          x
x                                                     bbbbb         x
x                                                                   x
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