C31232233133313221211113313331333133313331212111133112113313331312111   >>    C3123223313331322121111331333133313331333121211113311211331333131211   <<    C31232233133313221211113313331333133313331212111133112113313331312113   >>      C31232233133313221211113313331333133313331212111133112113313331312112   >>