C31232233133313221211113313331333133313113311331333133313331232313221   >>    C3123223313331322121111331333133313331311331133133313331333123231322   <<    C31232233133313221211113313331333133313113311331333133313331232313223   >>      C31232233133313221211113313331333133313113311331333133313331232313222   >>