C312312111111331312111133133313121111133313113313223313223311311   >>    C31231211111133131211113313331312111113331311331322331322331131   <<    C312312111111331312111133133313121111133313113313223313223311313   >>      C312312111111331312111133133313121111133313113313223313223311312   >>