D1212132333132233131323222313231323133313231322331323133112313231   >>    D121213233313223313132322231323132313331323132233132313311231323   <<    D1212132333132233131323222313231323133313231322331323133112313233   >>      D1212132333132233131323222313231323133313231322331323133112313232   >>