C31232233133313221211113313331333133313113311331333133313121111113121132113121   >>    C3123223313331322121111331333133313331311331133133313331312111111312113211312   <<    C31232233133313221211113313331333133313113311331333133313121111113121132113123   >>      C31232233133313221211113313331333133313113311331333133313121111113121132113122   >>