C2221232323213331311331333133313331323132313331123233213322232311   >>    C222123232321333131133133313331333132313231333112323321332223231   <<    C2221232323213331311331333133313331323132313331123233213322232313   >>      C2221232323213331311331333133313331323132313331123233213322232312   >>