C31232233133313221211113313331333133313331212111133112113232311   >>    C3123223313331322121111331333133313331333121211113311211323231   <<    C31232233133313221211113313331333133313331212111133112113232313   >>      C31232233133313221211113313331333133313331212111133112113232312   >>