D21221323131123313112211231333132322133313133313232211233132313331313232111   >>    D2122132313112331311221123133313232213331313331323221123313231333131323211   <<    D21221323131123313112211231333132322133313133313232211233132313331313232113   >>      D21221323131123313112211231333132322133313133313232211233132313331313232112   >>