D231123313223313132313232233131331123231323223313123231333123111   >>    D23112331322331313231323223313133112323132322331312323133312311   <<    D231123313223313132313232233131331123231323223313123231333123113   >>      D231123313223313132313232233131331123231323223313123231333123112   >>