C31232233133313221211113313331333133313113311331333133313121111112113133311   >>    C3123223313331322121111331333133313331311331133133313331312111111211313331   <<    C31232233133313221211113313331333133313113311331333133313121111112113133313   >>      C31232233133313221211113313331333133313113311331333133313121111112113133312   >>