C2221232323213331311331333133313331323132313331333213233121231323231   >>    C222123232321333131133133313331333132313231333133321323312123132323   <<    C2221232323213331311331333133313331323132313331333213233121231323233   >>      C2221232323213331311331333133313331323132313331333213233121231323232   >>