D22331322231323331313231313231333131323223313232211331323231111   >>    D2233132223132333131323131323133313132322331323221133132323111   <<    D22331322231323331313231313231333131323223313232211331323231113   >>      D22331322231323331313231313231333131323223313232211331323231112   >>