C31232233133313221211113313331333133313113311331333133313113313123221211   >>    C3123223313331322121111331333133313331311331133133313331311331312322121   <<    C31232233133313221211113313331333133313113311331333133313113313123221213   >>      C31232233133313221211113313331333133313113311331333133313113313123221212   >>