"Then you take a taxi and go directly to the Hengyuan Club Training Center, and I will wait for you at the gate. Duan Yun said to Guo Haitao.

"I'm already in a taxi......" Guo Haitao on the other end of the phone paused, and after a while, he whispered to Duan Yun: "The taxi is so expensive...... What, I don't have much money on me, you help me prepare some money, and when you get to the place, you settle the fare for me, and I will pay you back. ”

"It's a little meaning. Duan Yun smiled when he heard this, picked up the juice in front of him and took a sip before saying, "Master, you are really uninhibited, you don't even bring dozens of yuan of taxi money when you go out." ”

"More than a few dozen yuan...... Guo Haitao on the other end of the phone was silent for a moment, and then said to Duan Yun: "Now the car meter has shown more than 7,000 yuan......

"Poof!" Duan Yun heard this, and a mouthful of juice almost sprayed Liu Linna, who was sitting opposite, and then said loudly to Guo Haitao: "Seven thousand yuan!?Master Guo, you are in a black car!" What is his license plate number, I'll call the police!"

"If it's not a black car, we won't see a black taxi in Kyoto. ”

"What! You took a taxi directly from Kyoto to Jianghu!" Duan Yun was stunned for a moment.

"Isn't it to save time, forget it, I'll be over right away. After Guo Haitao finished speaking, he hung up the phone directly.

"You...... Is there something wrong?" Seeing Liu Linna put away her mobile phone, Liu Linna asked Duan Yun.

"My master is coming over soon. ”

"Your master?" Liu Linna was stunned when she heard this.

"It's Professor Guo Haitao of Huaqing University, the last time we won the national championship of the Olympiad, it was he who gave the award. Duan Yun reminded.

"Ah, it turned out to be Mr. Guo. Liu Linna was stunned when she heard this, but then asked Duan Yun curiously: "How can you worship Professor Guo as a teacher, have you always been in touch?"

"Not only is there a connection, I have already gone to Professor Guo's house for two meals. ”

"I seem to have heard my father say that Professor Guo is a leader in the field of mathematics in our country, and has been in charge of scientific research projects in an important department in China, and his position is very sensitive and important, I didn't expect you to become Professor Guo's apprentice, it's incredible......," Liu Linna exclaimed.

"Your father knows about Professor Guo?"

"Not only do you know, in the past, during the New Year's holidays, my grandfather and they would take the initiative to visit these scientists, Professor Guo, they are really amazing. Liu Linna said with some sighs.

"Your grandfather personally visited Professor Guo during the Chinese New Year!?" Hearing this, Duan Yun was suddenly surprised.

You must know that Liu Linna's grandfather, who was Liu Feng's father, was one of the core members of the Huaxia Power Center, and such a high-level figure would take the initiative to visit Guo Haitao, which is simply an honor that ordinary people can't imagine!

"I don't know the specifics, but after he presented us with an award in Kyoto last time, my father said two sentences, indicating that Professor Guo has indeed made a lot of contributions to the country. Liu Linna pondered for a moment and explained to Duan Yun.

"Uh. Duan Yun nodded when he heard this, his face was still a little surprised, although he had long known that Guo Haitao was highly respected in the domestic academic community, but he didn't expect to be so valued by the government!

"By the way, I seem to have heard you say 7,000 yuan just now, is it our business?" asked Liu Linna curiously.

"Ah, it's nothing, he didn't bring taxi money, so he asked me to help him cushion first. ”

"What kind of taxi costs 7,000 yuan, is it so expensive?"

"He took a taxi from Kyoto to here, can it not be expensive?" Duan Yun pouted and said.

"Poof!" Liu Linna laughed when she heard this, and said to Duan Yun after a while: "People who ask questions from universities are really eclectic. ”

"Hey, fortunately, my apprentice is not a poor ghost, otherwise, sooner or later he will be bankrupt by his old man. Duan Yun sighed, and then said, "Then you eat here slowly first, and I will prepare money to pick him up at the door." ”

"Wait a minute!" Liu Linna saw that Duan Yun was leaving, and hurriedly called out to him.

"What's the matter?"

"You don't have to pay for Mr. Guo's taxi, I'll let the club's accountant give you the money. Liu Linna pondered for a moment, and then said, "I also want to meet Teacher Guo." ”

"That'...... Okay!" Duan Yun thought for a moment when he heard this, then nodded, got up and left the table.

Seeing Duan Yun leaving, a flash of surprise flashed in Liu Linna's eyes......

……

Duan Yun had the 10,000 yuan just sent by the team's finance in his pocket, and Duan Yun ran quickly to the gate of the base.

Until now, Duan Yun still can't understand why Guo Haitao is so anxious to feel that Jiang and Shanghai are coming to him, and the only explanation is that Guo Haitao is too obsessed with the study of mathematics.

As his apprentice, Duan Yun has always only regarded mathematics as a kind of entertainment.

Twenty minutes later, Duan Yun finally saw a taxi with Kyoto photos coming in the distance.

"Master!" After seeing the car stop, Duan Yun hurriedly stepped forward as soon as possible, and after settling the more than 7,000 car money, he greeted Guo Haitao.

To Duan Yun's surprise, Guo Haitao's clothes were very thin at this time, and it was likely that he drove out of the classroom or laboratory without putting on a thick coat.

Without saying a word, Duan Yun directly took off the coat on his body and draped it on him.

"What about the materials I gave you?" Guo Haitao asked in a somewhat anxious tone after glancing at Duan Yun.

"What about the laptop in my room......" Duan Yun responded, and then continued: "Master, you haven't eaten yet, so let's go to the restaurant with me first......

"I'm not hungry, you hurry up and show me the two loopholes you said. Guo Haitao interrupted Duan Yun's words and said in a commanding tone.

"Okay......" Duan Yun heard this, so he had no choice but to lead Guo Haitao into the player's apartment building where he was.

After entering the room, Duan Yun took out his laptop, turned it on, and put it in front of Guo Haitao.

"Master, these are the small vulnerabilities of the two programs I found, and I have also made a patch to fix the vulnerability, you can see how it is. Duan Yun stood aside and said.

"Hmm......" Guo Haitao wiped his reading glasses with his clothes, and after putting them on, he looked at the screen intently.

"Bang bang bang!" At this time, Duan Yun's room remembered a knock on the door.

Duan Yun immediately opened the door, only to see that it was Liu Linna who appeared at the door.

"I want to see Professor Guo. Liu Linna said to Duan Yun with a smile.

"Well, come in. When Duan Yun heard this, he invited Liu Linna into the room.

However, at this time, Guo Haitao didn't seem to notice Liu Linna's arrival at all, and still frowned, staring at the computer screen.