U
                                        UU     CC
                                       CUU    CU       C
                                      UUUUU  UUU     UP
                                              CUC  UUU
                            CUUUUUUUUUUUUUUUU     UUUP     CC
                        PUUUUUUUUUUUUUUUUUUUUUUUUP   C  UUU
                      UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU   UUUC
                   CUUUUUUUUUUUUC        CUUUUUUUUUUUUC  U     PU
                 CUUUUUUUUU                    UUUUUUUUUC  UUUU
                PUUUUUUUU       CUUUUPPC         UUUUUUUUC  UU
               UUUUUUUP         UUUUUUUUUUUUP      UUUUUUUU         CC
              UUUUUUU           UUUUUUUUUUUUUUUC     UUUUUUU  UUUUC
             UUUUUUU            UUUUUUUUUUUUUUUUU     UUUUUUP  UP
    UUUUUU  PUUUUUU             UUUP   UUU    UUUU     UU      C
        UU  UUUUUU              UUUU   UUU    UUUUU             UUUUUUC
         C CUUUUUU              UUUU   UUU    UUUUUU            UUU
       UU  UUUUUUP              UUUU   UUU    UUUUUU            C
     PUUU  UUUUUUC              UUUU   UUU    UUUUUUC           CUUC
        C  UUUUUUC              UUUU   UUU    UUUUUUC           CUUUUUPC
        U  PUUUUUU              UUUU          UUUUUU            C
      UUUP  UUUUUU              UUUP          UUUUUU            U
        CU  UUUUUUP             UUUP          UUUUU             UUUU
          P  UUUUUUC            UUUUUUUUUUUUUUUUUU             PC
        PUU  PUUUUUU            UUUUUUUUUUUUUUUUP
     CUUUUUU  UUUUUUUU          UUUUUUUUUUUUUUC
            U  CUUUUUUUP        UUUUUUUUUUU
           UUU  CUUUUUUUUC      UUUUUUUUU
         CUUUCCC  PUUUUUUUUUU   UUUUUUUUU
               CUC  CUUUUUUU    UUUUUUUUU
               UUUU   CUUUUP    UUUUUUUUU
              UP    UU    P     UUUUUUUUU
             C      UUUUC       UUUUUUUUU
                   PUC   UUUUC
                   C     CUU   UUUU
                         UU     UU
                         C      U
                                C