D1323112331313331313311232322331323132322331333131323132313331323212121   >>    D132311233131333131331123232233132313232233133313132313231333132321212   <<    D1323112331313331313311232322331323132322331333131323132313331323212123   >>      D1323112331313331313311232322331323132322331333131323132313331323212122   >>