C2221232323213331311331333133313331323132313331333231133313222231   >>    C222123232321333131133133313331333132313231333133323113331322223   <<    C2221232323213331311331333133313331323132313331333231133313222233   >>      C2221232323213331311331333133313331323132313331333231133313222232   >>