D1212132333132233131323222313231323132313331322331323131323233121   >>    D121213233313223313132322231323132313231333132233132313132323312   <<    D1212132333132233131323222313231323132313331322331323131323233123   >>      D1212132333132233131323222313231323132313331322331323131323233122   >>