D1323112331313331313311232322331323132322331333131323132313223221   >>    D132311233131333131331123232233132313232233133313132313231322322   <<    D1323112331313331313311232322331323132322331333131323132313223223   >>      D1323112331313331313311232322331323132322331333131323132313223222   >>