552, The Girl and the Robot

"Alright, write down any patterns you've discovered on this paper and hand it to me."

During the meal, Bai Mengning handed out a sheet of white paper to everyone. Suddenly, these rookies lost their appetite. Some seemed confident while others appeared perplexed, scratching their ears and cheeks. However, Qiu Tianyi wasn't in a hurry. After careful comparison, he had found the pattern: there was a colored barcode on each person's ID card. Roughly eighty people were divided into sixteen colors, and since the ID cards were to be worn on the chest, he also keenly noticed that the colored portion of each person's barcode had different sequences, and there were at most five people with the same color in the same position. However, he didn't make a fuss about it and just quietly wrote down the pattern and handed the paper to Bai Mengning.

Once Bai Mengning had collected all the pieces of paper and began to look through them, she announced, "Stand up when I call your name."