C1212132133313223313133313113313121111331311331311331311331121211   >>    C121213213331322331313331311331312111133131133131133131133112121   <<    C1212132133313223313133313113313121111331311331311331311331121213   >>      C1212132133313223313133313113313121111331311331311331311331121212   >>