C2221232323213331311331333133313231333132313331313311313313331213121   >>    C222123232321333131133133313331323133313231333131331131331333121312   <<    C2221232323213331311331333133313231333132313331313311313313331213123   >>      C2221232323213331311331333133313231333132313331313311313313331213122   >>