D2311233132233131323132333131313232233132321133132313112113311331   >>    D231123313223313132313233313131323223313232113313231311211331133   <<    D2311233132233131323132333131313232233132321133132313112113311333   >>      D2311233132233131323132333131313232233132321133132313112113311332   >>