D3313333121123313221333132213231323331323132322133313233313233313223221   >>    D331333312112331322133313221323132333132313232213331323331323331322322   <<    D3313333121123313221333132213231323331323132322133313233313233313223223   >>      D3313333121123313221333132213231323331323132322133313233313233313223222   >>