C31232233133313221211113313331333133313113311331333133313121111332223133213311   >>    C3123223313331322121111331333133313331311331133133313331312111133222313321331   <<    C31232233133313221211113313331333133313113311331333133313121111332223133213313   >>      C31232233133313221211113313331333133313113311331333133313121111332223133213312   >>