C2221232323213331311331333133313231333132313331313311313311121331   >>    C222123232321333131133133313331323133313231333131331131331112133   <<    C2221232323213331311331333133313231333132313331313311313311121333   >>      C2221232323213331311331333133313231333132313331313311313311121332   >>