C31232233133313221211113313331333133313331212111133133313113313121211   >>    C3123223313331322121111331333133313331333121211113313331311331312121   <<    C31232233133313221211113313331333133313331212111133133313113313121213   >>      C31232233133313221211113313331333133313331212111133133313113313121212   >>