lll                                 oooooooo               v                             v                eeeeeeeeeeee      
lll                                o                 o              v                           v                 e 
i i                               o                   o                v                      v                   e
lll                             o                       o                v                   v                    e
lll                             o                       o                 v                 v                     eeeeeeeeeeee
lll                              o                    o                    v               v                      e
lll                               o                  o                       v             v                      e
llllllllllllllllllllllllll          oooooooo                          vvvvvvvv                        eeeeeeeeeeeee