C2221232323213331311331333133313331323132313331333112123122131233313211   >>    C222123232321333131133133313331333132313231333133311212312213123331321   <<    C2221232323213331311331333133313331323132313331333112123122131233313213   >>      C2221232323213331311331333133313331323132313331333112123122131233313212   >>