C31232233133313221211113313331333133313331212111133132223213121   >>    C3123223313331322121111331333133313331333121211113313222321312   <<    C31232233133313221211113313331333133313331212111133132223213123   >>      C31232233133313221211113313331333133313331212111133132223213122   >>