D2311231323331322331313232233132333132312111133132313231333132313331   >>    D231123132333132233131323223313233313231211113313231323133313231333   <<    D2311231323331322331313232233132333132312111133132313231333132313333   >>      D2311231323331322331313232233132333132312111133132313231333132313332   >>