C13112133313331323321333133313331333133313333121111331311332233111   >>    C1311213331333132332133313331333133313331333312111133131133223311   <<    C13112133313331323321333133313331333133313333121111331311332233113   >>      C13112133313331323321333133313331333133313333121111331311332233112   >>