C31232233133313221211113313331333133313331212111133121111131331121   >>    C3123223313331322121111331333133313331333121211113312111113133112   <<    C31232233133313221211113313331333133313331212111133121111131331123   >>      C31232233133313221211113313331333133313331212111133121111131331122   >>