D2311231323331322331313232233132333132312111133132313132322331121   >>    D231123132333132233131323223313233313231211113313231313232233112   <<    D2311231323331322331313232233132333132312111133132313132322331123   >>      D2311231323331322331313232233132333132312111133132313132322331122   >>