When the grouping was completed, the whole hall was quiet again. When the examiner saw the time was up, he smiled and said, "I believe everyone has finished preparing, and now we are starting to issue the content of the task."

"Dingdong".

Just as the examiner's voice had just dropped, all of a sudden our mobile phones rang. When we took out our mobile phones and looked at them, it turned out that we had received a short message, which was the exam content.

"Hello, Dao will be divided into two rounds, the preliminary and final. The total number of qualifications passed in this preliminary contest is 20 teams. When...