C31232233133313221211113313331333133313331212111133133313211211311   >>    C3123223313331322121111331333133313331333121211113313331321121131   <<    C31232233133313221211113313331333133313331212111133133313211211313   >>      C31232233133313221211113313331333133313331212111133133313211211312   >>