Then continue to look at the questions below.

[(2) Assume k and n are positive integers, find the necessary and sufficient conditions for an to be a multiple of ak, and express it by the relationship between k and n.]

Just when Sanzhi was about to start writing again, he suddenly had a strange feeling.

Can't tell.

It was as if the originally flexible and excited brain was suddenly hit hard by a hammer and became chaotic.

He looked up somewhat blankly.

I saw a strange thing standing on the ground in front of and to the left of my desk.

The thing was only about 40 centimeters tall, furry, standing upright, with big antlers on its head.

"What is this, Chopper?"

No, he seems to be dizzy.

Where did Chopper come from in reality?

And although that thing has antlers, it also has a horse face. In a pair of round eyes, the pupils are spinning back and forth, about to turn into the shape of mosquito coils, and those "smart" eyes in the shape of mosquito coils are watching

Own.

Saegusa Katsuya was in a daze for a few seconds, pressed his temples, and looked at the ground to the left again.

The strange horse-deer-like thing I saw just now has disappeared without a trace.

"I haven't slept well these days, am I too nervous and blinded?"

Katsuya Saegusa calmed down and thought that what he had just glimpsed for a few tenths of a second was an illusion he saw under the pressure of the examination room.

Otherwise...what else could it be?

Now he was taking the most important Dongda internal exam, and he had to fully focus on the test paper.

"Suppose k and n are positive integers... Find the necessary and sufficient conditions for an to be a multiple of ak... Use the relationship between k and n to express..." Sanzhi re-read the question stem.

But something strange happened.

He knew every word in the question, but when put together, he couldn't understand it at all.

wrong.

It shouldn't be.

When he was just reviewing the second question, he had already thought of a solution in his mind.

How did it come about?

Why...are you here?

"Multiples...sufficient conditions...relations...what do you mean?"

Katsuya Misaki became a little panicked.

In his sight, the densely packed and incomprehensible boring characters on the test paper began to twist and rotate one by one, round and round...

"Completely...can't understand it at all..."

Sanzhi's pupils also slowly rotated in their eye sockets.

no……

It seems that he has become an idiot who cannot think at all.

Why is this happening?

…

Another examination room classroom.

The little miko Onizuka, who was wearing a formal suit and was quietly solving problems, suddenly stopped writing.

Something seems wrong?

She felt that her originally very clear and active brain seemed to have become sluggish at a certain moment.

However, in less than half a second, the little witch got out of this state.

Onizuka, who returned to normal in an instant, raised his head slightly and was surprised to find that there were several people sitting in front of the examination table in the examination room, confused.

He is not the only one who is affected.

Moreover, apart from the physiques of spiritual masters and ordinary people, one cannot generalize.

He was fine, but others seemed to be stuck in an abnormal state and unable to extricate themselves.

"There seems to be... the aura of ghost stories?"

Onizuka sensed his surroundings and was keenly aware of a not too strong ghost story appearing outside the examination room, and fled towards the other side of the corridor.

"Is there a strange rumor going on here? Now? And it seems to be affecting the candidates taking exams."

The little witch immediately became unable to sit still.

Weird stories that can directly affect candidates taking exams?

What kind of strange existence is this?

And if it appears at such a specific time, it always feels like it is intentional, otherwise it would be too much of a coincidence.

But during the exam yesterday, no such unexpected situation occurred.

"How could such a thing happen? Do I have to leave the examination room to deal with that strange story?"

Onizuka looked at the test paper he had just finished solving a big question and frowned.

In fact, even if she leaves for the purpose of going to the bathroom, she will be accompanied by a female invigilator, so it will be difficult to really remove the spirit.

"Well……"

Just when the little witch couldn't make up her mind, she suddenly heard footsteps passing by in the corridor outside.

It was accompanied by a very familiar smell.

She turned her head and looked outside, and saw Kamiya Chuan swaggering past the entrance of the examination room.

"How did Kamiya get inside? But if he comes, I won't have to worry about that strange story, right?"

Onizuka breathed a sigh of relief.

The appearance of Kamiya made her feel at ease.

The Kaidan aura I felt just now was not too strong, and Kamiya's strength could easily handle it.
Chapter completed!