C31232233133313221211113313331333133313331212111133112113312113121   >>    C3123223313331322121111331333133313331333121211113311211331211312   <<    C31232233133313221211113313331333133313331212111133112113312113123   >>      C31232233133313221211113313331333133313331212111133112113312113122   >>