Li Zheng originally thought that he could use school resources and provide a special car to transport him, but he thought too much.

Yu Hong just threw him a WeChat business card and went to play by himself.

Li Zheng asked if he could take a taxi with public funds, and Yu Hong asked him to ask Principal Liu.

Li Zheng knocked into the principal's office again and asked Principal Liu if he could take a taxi. The principal said to ask Yu Hong.

Li Zheng, who is about to turn 18, feels the hypocrisy of the world for the first time.

We, the Yinghu Fishing Gang, can only strengthen ourselves.

Fortunately, WeChat contacts are very reliable.

She is a big sister whose nickname is "Ximig". She is studying for a master's degree. Her avatar is a large regular crystal with a snowflake-shaped crack in the center, which is full of chemical beauty.

The eldest sister was also very enthusiastic. She quickly passed the friend verification and sent the address of [School of Chemistry and Molecular Engineering, Jijing University] to Li Zheng and asked him how long it would take to arrive.

Li Zheng roughly estimated that it would take about 50 minutes, and after playing another 20 minutes, he finally set the time at 9:15.

After that, it’s the subway journey, changing from Line 2 to Line 4, and taking it all the way to the East Gate of Jida.

In the meantime, Li Zheng took out the experimental textbook and reviewed it a little. The effect was still limited, so it was just to strengthen his memory.

The journey was smoother than what the map software suggested. Before 9 o'clock, Li Zheng got out of the subway and was standing opposite the east gate of Jida.

Looking from a distance, the east gate of Jida is not big, just like an ordinary unit. There is only a small door open at this time. There are not many people coming and going, and you need to show your ID to enter.

Look at the little crew members going in and out with their shoulders on their backs.

Li Zheng knew that they were actually big guys.

If he had more time, he really wanted to sneak in and see the legendary Anonymous Lake, but at the moment, he could only follow the road south.

There is no way, because Anonymous Lake occupies too much space and there are too many public stalls. Ji Dahua College has already moved outside the campus, just on the roadside about 200 meters in front.

But just when Li Zheng was halfway there.

Suddenly his eyes widened.

Lifted the anus.

Damn... I didn't stop last night and ate too much spicy food.

Why are you making trouble now?

He quickly looked around anxiously.

Fortunately, there is a public toilet at the intersection.

Li Zheng didn't have time to think too much, so he held on tight, ran in, and rushed into the men's toilet.

Although this is a small public toilet, it has two stalls. The door to the outside one is open at this time.

Li Zheng didn't even have time to think, so he quickly got in, closed the door, hung up his schoolbag, put down his pants, and then started to scream.

Then, he breathed a long sigh of relief.

saved.

For the rest, just do it slowly, there is no need to be so intense.

But as soon as he slowed down, there was a burst of Kucha Kucha next door.

Just like fighting spirit.

Li Zheng never thought that this thing was just like yawning, and could be contagious.

When something happened next door, he also became violent and overturned.

The two of them pushed and pushed each other, and in just two minutes, they completed the ten-minute project.

It was rare for Li Zheng to be so unobstructed. Thinking that the hero next door must be the same, it was inevitable that he would become a little more erotic.

It's a pity, now that people live in buildings and have private bathrooms, I'm afraid they will no longer be able to enjoy this pleasure.

After expressing his passion, he unzipped his schoolbag and took out a tissue.

Then there was a glare.

I clearly remember there were more than half a pack.

Why just one?

Thinking of the special situation of today's sky full of stars.

This is a bit difficult to deal with.

no way.

Fold it a few times.

Better than nothing.

Just as Li Zheng was calculating how to use this piece of paper, a slightly immature male voice suddenly came from next door.

"Are you there..."

Li Zheng was stunned.

The hero next door?

Still a young hero.

"Huh?" Li Zheng responded immediately.

The young hero paused for a moment and asked with some embarrassment: "Do you... brother... have a lot of paper..."

Li Zheng suddenly panicked, looked at the thin tissue in his hand, which was only a little bigger than his palm, and replied stiffly: "I... just one..."

"Hey..." the young hero sighed sadly, "While walking, he suddenly jumped... Are you the same?"

Li Zheng felt the same and replied with a sigh: "Yes, you are always unprepared for this kind of thing."

"Just like love." Another person next door sighed.

"..."

"..."

"Good... literary talent."

"Thank you, thank you, um... you... wipe it off and leave me alone..."

Li Zheng looked at the only piece of paper in his hand and asked, "How about I finish it quickly and go out to buy some paper and bring it to you?"

"Don't...it's too much trouble for you..." The young hero just gritted his teeth and clucked, "Don't worry about me, I'll figure it out myself."

Li Zheng shivered all over.

You can't do that, hero.

Thinking that we all met by chance and were destined to be together, Li Zheng gritted his teeth and made the same noise.

"I'll tear half of it and give it to you, so we both can use it sparingly."

"Farewell...you are not enough..." the hero declined.

"It's okay, I'm good at math and can calculate the folding method for maximum usage." Li Zheng said, taking out a ruler from his schoolbag, folding the paper towel in half and clamping the ruler, ready to cut.

"Hey, I'm not bad at math." The hero next door seemed to be ignited with interest. "Brother, tell me the length and width of the paper quickly, and I will help you calculate it."

"Oh? Interesting." Li Zheng thought of this and didn't rush to cut it. He measured it first, "18x18 centimeters, the original folding method is a grid."

The hero then began to think: "Well...if these 12 squares can be fully utilized, and one person can wipe them 6 times, it will be barely enough."

"Yes, but if you fold it twice, the number of uses will be halved." Li Zheng frowned, "And you also have to consider keeping your hands and butt away from them."

"Let me put it this way... I seem to have seen this origami problem before." The hero suddenly raised his voice, "I remembered that because the solar panels of artificial satellites need to be folded and unfolded, there seems to be an algorithm, etc.

Wait for me to check."

Li Zheng was more of a practical person on this issue, holding the paper in his hand and trying it over and over again.

Not long after, the hero knocked on the partition: "The length of the paper is l, the thickness of the paper is t, t/6 multiplied by 2 to the nth power plus four, then multiplied by 2 to the nth power minus one, this n is the maximum number of origami times

, we almost made a log and figured it out."

Li Zheng murmured: "It's wonderful, but this seems to be just a simple discussion of how many times the paper can be folded. We still need to discuss the usage area each time and how to keep it from getting dirty."

"Yeah... none of these plans are reliable. Has no one ever studied such an important mathematical problem?"

"I have a curved plan to save the country." Li Zheng swallowed and said, "Put your finger directly through the middle of the paper, and then use your finger... After finishing the work, gather around it, click it, and wipe your finger

Clean it and throw it away, what do you think?"

"This... is a way, but the loss is a bit big." After the hero finished speaking, he suddenly came up with a plan, "Brother, we can do this, rub it on the edge, and then fold the small part that has been rubbed.

Go in, change the edge, wipe again, roll the paper in little by little, and finally turn it into a ball."

"Wonderful!" After Li Zheng praised him, he suddenly felt inspired, "I think it can be strengthened a little, and there is an angle a..."

"It's okay, but it can still be optimized. After calculating a, then put the diagonal..."

"Hmm, interesting... but do we need to leave at least a few square centimeters of room for our fingers to operate?"
To be continued...