C23 There Were Many Difficulties in Finding the Data

While Su Jianguo was studying the train information in his dorm room, his roommate, Xiao Liang, walked in and patted Su Jianguo on the shoulder, making him shiver.

Su Jianguo was so scared that his red and blue pencil fell onto the bed. He raised his head and looked at Xiao Liang in confusion.

Xiao Liang said happily, "Jianguo, I have your number today. Quick, follow me to the security guard