C13112133313331323321333133313331333133313331311331323131123311   >>    C1311213331333132332133313331333133313331333131133132313112331   <<    C13112133313331323321333133313331333133313331311331323131123313   >>      C13112133313331323321333133313331333133313331311331323131123312   >>