C13112133313331323321333133313331333133313331333131133132233223223231   >>    C1311213331333132332133313331333133313331333133313113313223322322323   <<    C13112133313331323321333133313331333133313331333131133132233223223233   >>      C13112133313331323321333133313331333133313331333131133132233223223232   >>