C31232233133313221211113313331333133313331212111133132223132223311   >>    C3123223313331322121111331333133313331333121211113313222313222331   <<    C31232233133313221211113313331333133313331212111133132223132223313   >>      C31232233133313221211113313331333133313331212111133132223132223312   >>