C31232233133313221211113313331311331333133313113313331312311211   >>    C3123223313331322121111331333131133133313331311331333131231121   <<    C31232233133313221211113313331311331333133313113313331312311213   >>      C31232233133313221211113313331311331333133313113313331312311212   >>