C31232233133313221211113313331333133313331212111133133313331311221123233121   >>    C3123223313331322121111331333133313331333121211113313331333131122112323312   <<    C31232233133313221211113313331333133313331212111133133313331311221123233123   >>      C31232233133313221211113313331333133313331212111133133313331311221123233122   >>