C31232233133313221211113313113313331333133313113131211113313123311   >>    C3123223313331322121111331311331333133313331311313121111331312331   <<    C31232233133313221211113313113313331333133313113131211113313123313   >>      C31232233133313221211113313113313331333133313113131211113313123312   >>