C13112133313331323321333133313331333133313333121111331333132321333121   >>    C1311213331333132332133313331333133313331333312111133133313232133312   <<    C13112133313331323321333133313331333133313333121111331333132321333123   >>      C13112133313331323321333133313331333133313333121111331333132321333122   >>