C31232233133313221211113313331333133313331212111112111133332321311   >>    C3123223313331322121111331333133313331333121211111211113333232131   <<    C31232233133313221211113313331333133313331212111112111133332321313   >>      C31232233133313221211113313331333133313331212111112111133332321312   >>