C2221232323213331311331333133313331323132313222212332231333132211   >>    C222123232321333131133133313331333132313231322221233223133313221   <<    C2221232323213331311331333133313331323132313222212332231333132213   >>      C2221232323213331311331333133313331323132313222212332231333132212   >>