D1323112331313331313311232322331323132322331333131323133313223313211   >>    D132311233131333131331123232233132313232233133313132313331322331321   <<    D1323112331313331313311232322331323132322331333131323133313223313213   >>      D1323112331313331313311232322331323132322331333131323133313223313212   >>