C2221232323213331311331333133313331323132313331333112123122132133321121   >>    C222123232321333131133133313331333132313231333133311212312213213332112   <<    C2221232323213331311331333133313331323132313331333112123122132133321123   >>      C2221232323213331311331333133313331323132313331333112123122132133321122   >>