D22331322231323331313231313231333131323223313232211221123123221   >>    D2233132223132333131323131323133313132322331323221122112312322   <<    D22331322231323331313231313231333131323223313232211221123123223   >>      D22331322231323331313231313231333131323223313232211221123123222   >>