???
                 ?????????
              ???         ???
              ???         ???
                       ???
                    ???
                 ???
              ???         ???
              ???         ???
                 ?????????
                    ???

                    ???
                   ?????
                    ???


                    ????
                 ?????????
              ???         ???
              ???         ???
                       ???
                    ???
                 ???
              ???         ???
              ???         ??
                 ?????????
                    ???

                    ???
                   ?????
                    ???


                    ???
                 ?????????
              ???         ???
              ???         ???
                       ???
                    ???
                 ???
              ???         ???
              ???         ???
                 ?????????
                    ???

                    ???
                   ?????
                    ???