C31232233133313221211113313331333133313113311331333133313331333232112311   >>    C3123223313331322121111331333133313331311331133133313331333133323211231   <<    C31232233133313221211113313331333133313113311331333133313331333232112313   >>      C31232233133313221211113313331333133313113311331333133313331333232112312   >>