字符串是一个严格的数据结构，在传递字符串的任何地方都存在很多重复的过程。它是隐藏信息的理想工具。
The string is a stark data structure and everywhere it is passed there is much duplication of process. It is a perfect vehicle for hiding information.
The pursuit of knowledge is a journey without a final destination.
In mathematics, the art of proposing a question must be held of higher value than solving it.
I like to take things step by step, one match at a time, one tournament at a time.