Hacker and Alien.

Summary

Yang Hai Chen is puzzled by a recurring string of numbers found in password design "Work Notes." Both Song Ping and Ma Shan seem to be hiding something about its significance. As Song Ping examines the notes, she recalls that the string wasn't part of the original password design. Confused, she contacts Ma Shan, who also doesn't remember it being included. They attempt to investigate its origin, with Ma Shan searching online for answers. Meanwhile, Xu Meng, Ma Shan's wife, questions the validity of the findings. Eventually, it becomes clear that the string's appearance is mysterious, leaving both Song Ping and Ma Shan bewildered about its relevance to their project.

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