D22331322231323331313231313231333131323223313232211221123132311   >>    D2233132223132333131323131323133313132322331323221122112313231   <<    D22331322231323331313231313231333131323223313232211221123132313   >>      D22331322231323331313231313231333131323223313232211221123132312   >>