C13112133313331323321333133313331333131211113313331333133313331333132212312131   >>    C1311213331333132332133313331333133313121111331333133313331333133313221231213   <<    C13112133313331323321333133313331333131211113313331333133313331333132212312133   >>      C13112133313331323321333133313331333131211113313331333133313331333132212312132   >>