D2311231323331322331313232233132333132313231211113313231313111131   >>    D231123132333132233131323223313233313231323121111331323131311113   <<    D2311231323331322331313232233132333132313231211113313231313111133   >>      D2311231323331322331313232233132333132313231211113313231313111132   >>