D2311231323331322331313232233132313231323221133132333132313311211   >>    D231123132333132233131323223313231323132322113313233313231331121   <<    D2311231323331322331313232233132313231323221133132333132313311213   >>      D2311231323331322331313232233132313231323221133132333132313311212   >>