D1212132333132233131323222313231323133313231322331313233313231331123131   >>    D121213233313223313132322231323132313331323132233131323331323133112313   <<    D1212132333132233131323222313231323133313231322331313233313231331123133   >>      D1212132333132233131323222313231323133313231322331313233313231331123132   >>