C31232233133313221211113313331333133313331212111112111113331312312231   >>    C3123223313331322121111331333133313331333121211111211111333131231223   <<    C31232233133313221211113313331333133313331212111112111113331312312233   >>      C31232233133313221211113313331333133313331212111112111113331312312232   >>