C31232233133313221211113313331333133313331212111133133322133313113121221   >>    C3123223313331322121111331333133313331333121211113313332213331311312122   <<    C31232233133313221211113313331333133313331212111133133322133313113121223   >>      C31232233133313221211113313331333133313331212111133133322133313113121222   >>