D2311233132233131323132322331313311232313232233131232313331211111   >>    D231123313223313132313232233131331123231323223313123231333121111   <<    D2311233132233131323132322331313311232313232233131232313331211113   >>      D2311233132233131323132322331313311232313232233131232313331211112   >>