D2311231323331322331313232233132333132312111133132313231333132322331   >>    D231123132333132233131323223313233313231211113313231323133313232233   <<    D2311231323331322331313232233132333132312111133132313231333132322333   >>      D2311231323331322331313232233132333132312111133132313231333132322332   >>