"What else can I do?" said Empress Changsun, "Gu Qing, what else do you think there is a way to make friends with the two countries?"

"Report to the Queen." Gu Qing said loudly, "There are still interests, the interests between the two countries! The Queen, our Central Plains, is rich in products, but they are different. For example, the Turks, the Turks make a living by grazing, and they cannot farm, so in winter, all the grass withered, they will lose food after eating cattle and sheep."

"For example, they lack water sources..."

After Gu Qing said this, Empress Changsun understood, "You go back first."

The quietness in Lizheng Hall was restored. Li Er walked out of the screen behind and Empress Changsun whispered, "Your Majesty, can this Gu Qing's words be useful?"

"Yes!" Li Er nodded.

On the way back, the harem was in a good view, and there were many palace maids here, one by one.

"Gu Qing!"

Suddenly, a shout made Gu Qing stop, and when he turned around, he saw that it was Gao Yang, "Princess Gao Yang."

"Gu Qing, is this princess good-looking today?" Gao Yang swayed his dress.

Looking at Gao Yang's light blue dress, although he was a little simple and elegant, he had a bit of fairy spirit. "The princess is very beautiful, like a fairy."

Gu Qing said it without hesitation, and the palace maids beside him were surprised.

"I'm saying that this princess is a fairy!" Gao Yang said with a smile, "I'm all fairies, aren't you still moved? Hurry up and be my prince-consort!"

"That's not possible!" Gu Qing sniffed, "Fairy is good, but the sleeping fairy is going to violate the laws of heaven."

"Hmph!" Gao Yang turned his head, "You are right and wrong. You obviously don't want to be the princess's princess, and you are talking about fairies! They are all excuses, excuses!"

Gu Qing reached out to the back of Gao Yang's head.

"What are you going to do?" Gao Yang blushed at Gu Qing's sudden movements.

After reaching out his hand, Gu Qing had an extra flower in his hand, "Give it to His Highness the Princess."

"Hmm?" Gao Yang looked at the flower and looked behind him again, "Where did the flower come from? Did you transform it into an immortal method?"

"This is called magic." Gu Qing took out another penny and put it in the palm of his hand and covered it with his other hand. He waved it in front of Gao Yang. After opening his palm, the penny had turned into two penny.

"Hey? It's been two-part, how did you change it?" Gao Yang said again, "Do it again."

Gu Qing covered two cents with his palm again and shook it again in front of Gao Yang. It was already three cents when he opened his palm.

"So amazing!" Gao Yang was surprised and took out a small silver cake, "Quick, turn it into this! You're going to get rich!"

Gu Qing: "..."

Was this princess broken by herself?

"This is magic, it's a trick, not something that is transformed out of thin air." Gu Qing explained.

"It's fun!" Gao Yang said excitedly, "Tell me quickly!"

Gu Qing patiently explained the technique to Gao Yang. Gao Yang learned it after demonstration. He had fun playing again and again.

"I will go to the competition in the end, so I will say goodbye." Gu Qing hurriedly left.

"Gu Qing, stop!" Gao Yang followed, "I don't allow you to lose to them. Anyway, the sisters in the palace cannot marry far away!"

"I will understand." Gu Qing said, "Your Highness Princess, go back quickly, don't worry! I'm here."

Gao Yang stopped and looked at Gu Qing's back, don't worry! With me here, this sentence echoed in her heart for a long time. He looked down at a group of people on her body and said to the palace maids around him, "Go back, make a few more dresses of this princess like this."

"Does Your Highness the Princess need other clothes?" the palace maid asked again.

"No need! As long as he likes it." Gao Yang jumped and went back happily.

Gu Qing returned to Tai Chi Palace again, and Li Tai began to explain the topic, "The six different legions each chose 6 officers of 6 different ranks, and a total of 36 people were arranged in a 6 rows and 6 rows of ranks, so that the six officers of each row and rank happened to come from different legions and had different ranks. How should we line up this rank?"

As soon as the problem arises, Tai Chi Palace is silent...

Six legions, six ranks, six officers...

After listening to the question, Cheng Yaojin was full of the number six, and he was so dizzy... he suddenly wanted to sleep.

"You may not hear clearly, I am talking aside." Li Tai repeated the question again.

Still silent...

Gu Qing looked at their expressions. This was a very famous combination mathematical problem. It could not be solved without a certain formula. What's more, a thousand years ago, even in later generations, it took people nearly two hundred years to solve this famous mathematical problem and prove the most famous Euler square.

The envoys from the Western Regions gave up.

Nanzhao also gave up.

The Turks also gave up.

Tuyuhun gave up...

Only Songtsen Gampo was still racking his brains to write and draw, putting down his pen and saying, "What is the answer!"

Li Tai took out a piece of paper, and some of them wrote three arrangements, "In fact, there are many solutions."

"Why can't I solve it?" Songtsen Gampo said.

"Our General of the Central Army said that to calculate this, you need to find the formula first. You can't arrange it without the formula." Li Tai said.

"Hahahaha!" Songtsen Gampo smiled for a long time and said to Gu Qing, "I Songtsen Gampo admire you in this Central Plains, you are the only one."

"Agree!" Gu Qing said.

Songtsen Gampo walked out of the palace and returned to the inn angrily. Envoys from other countries were discussing which princess was the most beautiful. Songtsen Gampo said, "If you want to say that the monarch of the Tang Dynasty today, the most beloved princess is Princess Gaoyang, and this Princess Gaoyang has not yet been married."

Gu Qing took advantage of the night to the leader guard and found that Di Renjie had gone back. Yixing Lanshan asked to see Brother Qiang and several soldiers playing cards, "Brother Qiang, how much has he won?"

"Not much!" Brother Qiang said with a smile.

"How much have you lost?" Gu Qing asked a few more soldiers.

The soldiers also waved their hands and smiled bitterly...

"General Zhonglang, do you want to do it a few more?" Brother Qiang said, "You are not on duty tonight anyway."

"I'm going to rush home and stop playing, you guys have fun." Gu Qing said and waved his hands and left.

When I walked out of Chang'an, I saw Princess Gaoyang.

"Why are you here?" Gu Qing said in surprise.

"I'll go see the emperor sister. Do you think I'm waiting for you? It's so pretty!" Gao Yang said.

Gu Qing looked at her clearly having a car sedan and insisted on walking.

Fireflies were flying outside the city, and Gao Yang walked beside Gu Qing and asked, "Gu Qing, what color do you like."

"Yellow." Gu Qing said.

"Isn't it blue?" Gao Yang glanced at his group and said, "Men are indeed right and wrong!"

"You look good in whatever you wear, blue and yellow, okay." Gu Qing said lazyly.
Chapter completed!