==========================================
=@                          E            =
=                           E   pppp     =
=                           E   pppp L   =
=                           E   pppp     =
=     EEEEEE                E            =
=                           E            =
=                           E            =
=                           E            =
=       u   EEEEEE     u    E            =
=                                        =
=                                        =
=r          r        r       r         uu=
=                                        =
=                                        =
=EEEEEEEE                                =
=                                        =
=              EEEEEE                    =
=                        u               =
=  bbb                                   =
=  bpb                                   =
=  bpb   EEEEEEEEEEEE                    =
=  bbb                          L        =
=                                        =
=        ppp                             =
=        pppbbb                          =
=           bbb                          =
=                                        =
=                                     w  =
=                         w w   w  w     =
=S    S    S    G    G    S    S    S    =
==========================================