C13112133313331323321333133313331333131211113313331333133313221121132311   >>    C1311213331333132332133313331333133313121111331333133313331322112113231   <<    C13112133313331323321333133313331333131211113313331333133313221121132313   >>      C13112133313331323321333133313331333131211113313331333133313221121132312   >>