D1212132333132233131323222313231323133313231322331323123231323321   >>    D121213233313223313132322231323132313331323132233132312323132332   <<    D1212132333132233131323222313231323133313231322331323123231323323   >>      D1212132333132233131323222313231323133313231322331323123231323322   >>