D33132233232132333132313111123313232233133313231323133313231333133311222121   >>    D3313223323213233313231311112331323223313331323132313331323133313331122212   <<    D33132233232132333132313111123313232233133313231323133313231333133311222123   >>      D33132233232132333132313111123313232233133313231323133313231333133311222122   >>