D1131323223313113313123132313231323331323221122112111133132333132313232212111   >>    D113132322331311331312313231323132333132322112211211113313233313231323221211   <<    D1131323223313113313123132313231323331323221122112111133132333132313232212113   >>      D1131323223313113313123132313231323331323221122112111133132333132313232212112   >>