A piece of white paper was stuck at the door of a big office in London. People should sign their names on white paper when they arrive at the office every morning. At nine o'clock, a young woman will draw a red line under her surname. If someone comes to the office later, they need to explain to the manager.

Whenever there is fog in the city, the first person who is late always writes the reason for being late as "delayed by fog", and the people behind him only need to write "ditto" in turn on the sign-in paper.

One morning, however, the first person who was late wrote "My wife gave birth this morning" instead of "I was delayed by the fog". There are about twenty or thirty people in the back, so write "ditto" as usual.

I think the article is very interesting. I helped you turn it over. Would you mind saying your name?