C31232233133313221211113313331333133313331212111133133112213231311   >>    C3123223313331322121111331333133313331333121211113313311221323131   <<    C31232233133313221211113313331333133313331212111133133112213231313   >>      C31232233133313221211113313331333133313331212111133133112213231312   >>