D231123313223313132313232233131212132313231312323132313231323221211   >>    D23112331322331313231323223313121213231323131232313231323132322121   <<    D231123313223313132313232233131212132313231312323132313231323221213   >>      D231123313223313132313232233131212132313231312323132313231323221212   >>