D231123132333132233131323223313233313231211113313231313232233111   >>    D23112313233313223313132322331323331323121111331323131323223311   <<    D231123132333132233131323223313233313231211113313231313232233113   >>      D231123132333132233131323223313233313231211113313231313232233112   >>