C2221232323213331311331333133313331323132322222323323211231131231   >>    C222123232321333131133133313331333132313232222232332321123113123   <<    C2221232323213331311331333133313331323132322222323323211231131233   >>      C2221232323213331311331333133313331323132322222323323211231131232   >>