Today, I went to the library to borrow the reference books for setting up courses. I opened the borrowing card and found that the first two borrowers were seniors of level 13 and 14, and the book return date was written on March 1. When I looked up at the indicator board of the library's lending office, I was surprised when I found that it said "The latest return date is 2017.3.1". The three people borrowed the same book on different dates in 2015, 2016, and 2017. Coincidentally, the calculated return dates were all 3.1 days of the following year.
Think of the plot of "DARK".
Dann wann ist das Buch? :D
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