C31232233133313221211113313331333133313331212111133133313331311221123123121   >>    C3123223313331322121111331333133313331333121211113313331333131122112312312   <<    C31232233133313221211113313331333133313331212111133133313331311221123123123   >>      C31232233133313221211113313331333133313331212111133133313331311221123123122   >>