D1212132333132233131113231313231333132322112331323133311211323221   >>    D121213233313223313111323131323133313232211233132313331121132322   <<    D1212132333132233131113231313231333132322112331323133311211323223   >>      D1212132333132233131113231313231333132322112331323133311211323222   >>