C31232233133313221211113313331333133313113311331333133313121121131311   >>    C3123223313331322121111331333133313331311331133133313331312112113131   <<    C31232233133313221211113313331333133313113311331333133313121121131313   >>      C31232233133313221211113313331333133313113311331333133313121121131312   >>