D33132233232132333132313111123313232233133313231311331313231211   >>    D3313223323213233313231311112331323223313331323131133131323121   <<    D33132233232132333132313111123313232233133313231311331313231213   >>      D33132233232132333132313111123313232233133313231311331313231212   >>