C2221232323213331311331333133313331323132313331333213233121232323321   >>    C222123232321333131133133313331333132313231333133321323312123232332   <<    C2221232323213331311331333133313331323132313331333213233121232323323   >>      C2221232323213331311331333133313331323132313331333213233121232323322   >>