C2221232323213331311331333133313331323132313331123233213322211331   >>    C222123232321333131133133313331333132313231333112323321332221133   <<    C2221232323213331311331333133313331323132313331123233213322211333   >>      C2221232323213331311331333133313331323132313331123233213322211332   >>