C2221232323213331311331333133313331323132313331333213233121213321211   >>    C222123232321333131133133313331333132313231333133321323312121332121   <<    C2221232323213331311331333133313331323132313331333213233121213321213   >>      C2221232323213331311331333133313331323132313331333213233121213321212   >>