C13112133313331323321333133313331333133313331333133313331333133321112311   >>    C1311213331333132332133313331333133313331333133313331333133313332111231   <<    C13112133313331323321333133313331333133313331333133313331333133321112313   >>      C13112133313331323321333133313331333133313331333133313331333133321112312   >>