C2221232323213331311331333133313331323132313331333112123122132121123331   >>    C222123232321333131133133313331333132313231333133311212312213212112333   <<    C2221232323213331311331333133313331323132313331333112123122132121123333   >>      C2221232323213331311331333133313331323132313331333112123122132121123332   >>