C2221232323213331311331333133313331323132313331333112123122131222211   >>    C222123232321333131133133313331333132313231333133311212312213122221   <<    C2221232323213331311331333133313331323132313331333112123122131222213   >>      C2221232323213331311331333133313331323132313331333112123122131222212   >>