Afterwards, Ye Shuo asked others about his numbers.

"Li Yue, what is my number?"

Li Yue blinked: "Oh, I remember it's 300!"

"Okay, thank you Li Yue!" Ye Shuo nodded gratefully, "Your number is 256."

When he asked Liang Xia again, Liang Xia answered without hesitation: "300!"

In this way, Ye Shuo was relieved. Li Yue and Liang Xia had no telepathy. Even if they wanted to deceive themselves, it would be impossible to compile the same number at the same time. It seems that their number is indeed 300!

What else did he say?... When he thought of Huangfu Li, Ye Shuo rolled his eyes in contempt. That guy was really lying to me! If he believed him, then he would be really three hundred and two!

On the other hand, Huangfu Li also asked one by one, and finally asked Dan Tai Jing.

“It’s 286.”

This is the fourth number he heard now.

"It doesn't matter if you don't believe me." Seeing Huangfu Li hesitating, Dan Tai Jing said quickly, "These numbers actually have some rules, and I can explain them to you. First of all..."

Huangfu Li suddenly became interested and waved his hand quickly: "Don't tell me first. I'm very interested in its rules and want to try to crack it yourself."

Although math is impossible to directly improve one's cultivation, the process of studying the problem solving process is particularly intelligent and brain-enhancing. Learning deeper into the enemy's attack direction, moves, and even the laws of heaven and earth can be calculated through formulas.

It is precisely because of this that when students in the academy complained about the algebra and analytical geometry, there are many big figures in the world who try to solve a few arithmetic problems when they have nothing to do. It is fun to immerse themselves in it.

Leaving the crowd, Huangfu Li found a piece of open space alone and sat down, and listed all four sets of numbers in his memory.

1,256

2,269

4,302

5,307

From the surface of numbers alone, there is no way to see any rules. Huangfu Li frowned and thought hard.

"Oh, after asking four people, I got four different numbers..."

Only one of these four different numbers may be true or all of them are fake.

But first of all, he was sure that what Ye Shuo told him was that "272" must be fake, and when he designed to cheat him, he blurted out "two-eighty". With his scheming, he absolutely did not say such a level of "little among lies". That is to say, anything that starts with 270 must be fake.

Moreover, judging from his forced brakes at that time, the number must not be the total 280. The third place is between 1-9.

In this way, excluding Liang Xia's "275", only Li Yue told him 283 and Dan Tai Jing told him 286. These two people naturally believe in Dan Tai Jing more. But what he is more interested in now is to find out the hidden rules in these numbers-

After leaving space in the third position, he filled in the two numbers separately, looked at the five sets of numbers that were formed, and fell into deep thought again.

Among the five students in the hall, three of them had found their direction, leaving only Li Yue and Liang Xia in the corner.

"Li Yue, do you believe the number reported by Ye Shuo?" Liang Xia supported his forehead with one hand, looking very distressed. It seemed that the intellectual puzzles along the way had exhausted his brain power.

Li Yue hesitated and recalled: "He reported to me that your number is 277, which coincides with the number I remember. In addition, the number he reported to me was 256, so I still have a half-believing and half-doubted attitude for the time being..."

"277, does it really match your memory?" Liang Xia immediately became energetic and asked. After receiving Li Yue's affirmative answer, he punched the ground angrily: "Damn it, what he reported to me is 269..."

"By the way, that makes sense!" Shaoqing, on Liang Xia's face, his anger gradually faded, and there was a sense of sincere excitement. "He knew you could see my numbers, so it was meaningless to lie to you at this point. But about your own numbers..." He paused, "It's not 256, but 243!"

Li Yue covered her mouth in surprise: "Are you saying Ye Shuo lied?"

"No! It's 'that' Ye Shuo!" Li Yue's reaction was far greater than Liang Xia imagined. "You don't know. Tongtong gave him a nickname called Ye Bailian in private, which means that he is as pure as a white lotus. 'that' Ye Bailian will lie?!"

"It's not surprising." Liang Xia pulled the corner of her mouth a little embarrassedly, "In the previous level, we cheated him so many points, so he must also want to cheat some back!"

"I really know people but not my heart!" Li Yue was so angry that she puffed up her face, "Liao Xia, fortunately I'll discuss it with you!"

Time passed quietly, and at this point, it was time for several people to enter numbers.

There are five typing bars on the screen. When everyone has entered all the input, the judgment result will automatically appear.

1, Li Yue (243)×

2, Liang Xia (277)×

"Why..." Ye Shuo looked at the two dazzling "×", which was even more heartbroken than losing points. "Didn't I tell you the correct number?"

Li Yue and Liang Xia couldn't say anything about their suffering, so they could only glar at each other fiercely and lower their heads silently.

3, Huangfu Li (286)√

4, Ye Shuo(300)×

5, Dan Tai Jing (307)√

"You..." Ye Shuo looked at Li Yue and Liang Xia again, with deep disappointment and anger in his eyes. He... was deceived by them?

It turned out that as soon as Ye Shuo walked out of the room and talked with Huangfu Li, Li Yue and Liang Xia on the other side had reached a consensus. If Ye Shuo asked them, he would tell him the same number, so he would definitely believe it. However, he had to do the opposite to Huangfu Li and Dan Tai Jing.

When deceiving Ye Shuo, the two acted very tacitly. However, when they confirmed the numbers separately afterwards, they also chose to deceive each other.

Although Li Yue is Shen Antong's best friend, the difference between "deception and anti-deception" is still far from it. As for Liang Xia, she was completely blinded by Li Yue's simple appearance.

In this way, the trio that was trapped in a lie was wiped out.

"Talk to say that, you don't seem to have talked to anyone before?" Liang Xia suddenly remembered someone in annoyance, "You haven't asked us about your own numbers, how did you enter the correct number? Are you really lucky and guessed it?"

Ye Shuo and Li Yue agreed with him, and both showed expressions of waiting for the answer.

"So I've said a long time ago that there is a certain rule among these numbers." Dan Tai Jing's tone was calm and he didn't keep it in a slight way. He took out paper and pen and signaled everyone to get closer.

"Precisely demonstrate it to you. Take the numbers I got at that time as an example."

1,256

2,269

3,286

4,302

"It can be seen that the numbers are in a gradual incremental trend, so we first try and subtract the previous one with the last one."

269-256=13

286-269=17

302-286=16

"Isn't this still unruly?" Ye Shuo muttered.

"What if I look at it this way?" Huangfu Li, who was standing beside him, took the initiative to lift the pen and drew a circle at the positions including the subtraction and the difference.

"Ah..." Li Yue seemed to have seen something. Since she saw Dan Tai Jing's magic of cracking the password in the control room last time, she has become interested in math. During this period, she has been trying to learn by herself. Although she is still a half-baked person, some simple addition, subtraction, multiplication and division can at least be calculated independently.

If you look at the subtractions and differences alone, you can find that there is a special relationship here.

256,256=13

269,269=17

286,286=16

"The law of increasing numbers is to add a hundred digit, hundreds, ten digits and single digits respectively, and add it to it itself." Dan Tai Jing continued to explain to everyone, "After obtaining this rule, the fifth number is 30232=307."

This rule is not very strange to put it bluntly, but the exploration process is really clever. After Dan Tai Jing's explanation, everyone looked at him, with a capital convincing look in their eyes.

Then, they entered the fourth level.

This is a slightly smaller space, without five separate rooms, and it is empty everywhere, even the clues are not in their previous location.

"I said, is there really nothing here?" After a carpet-style search, Li Yue complained loudly.

"That..." Ye Shuo didn't know if he should say this, "Actually, I found a flashlight just now. But I wanted to get a flashlight in broad daylight, so I never took it out..."

Huangfu Li took the flashlight, fiddled with it for a few simple moves, then turned on the switch, shining it towards the wall.

The radiant light is not the warm yellow that everyone is familiar with, but a strange light purple.

At this moment, a miracle happened. A few lines of text appeared under the cover of the lilac light. It seemed that it had been written early in the morning, but after turning off the flashlight, the text would disappear again. Ye Shuo was tightly in front of the wall, and there was no trace at all.

"Those words are written with a special fluorescent reagent. They will only be displayed when they are exposed to special light. This is also part of the mechanism." Huangfu Li explained.

Following the prompts in the text, everyone pressed the wall, and the cabinet in the corner automatically moved away, revealing a hidden display screen and key surface.

It is obvious that this is asking everyone to enter the password. But there is only one horizontal bar on the screen, and the number of password digits cannot be determined. And this time the key surface is quite complicated, not only 10 numbers, but also a series of letters. Of course, they will not be just a decoration, that is, the last password is likely to be a mixture of numbers and letters!

In addition to typing the bar, clicking the toggle button, you can also see a few lines of prompts.

1. Four-layer encryption.

2, Key: 3

3, Password: 10011,1010,11010,10101,100,10110,10010,111

This series of dense 0 and 1 combinations made everyone's head full of attention.

"Are we going to add these numbers?" Ye Shuo proposed the simplest idea, "If we add them separately, they are 3, 3, 3, 3, 1, 3, 2, 3, so is the password 33331323?"

"Hey, isn't it the fourth-layer encryption? That is to say, it's not that simple!" After Liang Xia scolded Ye Shuo, his head also swelled. "But the second line prompted me not to understand. It's said that it's the fourth-layer encryption, why did another key come out? Is it telling us that the fourth-layer encryption is a scam, but in fact there are only three layers?"

"That, I said..." Li Yue looked at Dan Tai Jing with help, "This 0 and 1, I remember it seems to be..."
To be continued...