Chapter 775

"Then there are mobile phones. At that time, when mobile phones were just beginning to become popular among students, Li Zhi got it when she was just in the second grade. She seemed to like it very much, and she also introduced it in a large space in the diary. Based on these two points As a clue, I deciphered the code. Then, please observe the code carefully.”

With that said, she took out the coded carbon paper from her school bag and handed it to Li Chuan.

Reading while walking was a bit dangerous, but they were walking on a residential street with no traffic at all.It doesn't matter if Xia Ling pays attention...

"The markings, as you can see, look like fragmented original designs. Although there are simple figures such as circles and a straight line, basically, it is impossible to read directly as such, and there is nothing wrong with that." .Therefore, some kind of transformation is required. Here, we must first use the hints from "Traffic" to make the transformation, Senior Li Chuan?"

"Ah good……"

Li Chuan raised his head from the carbon paper.

"What's the key word in that movie?"

"...'Crossroads'... right?"

"exactly."

After finishing speaking, Xia Enxue was looking for something in her schoolbag again.

"These marks also have many 'crossroads' - the points where lines intersect. Of course, there are shapes without any intersections, but the vast majority of marks have intersections between lines. The count of intersections is recorded at here."

Xia Enxue took out another piece of paper.Below the notation, the number of intersections is written under each figure.

"Well, that's how it is..."

Looking at the paper, Li Chuan touched his chin.

"Uh, up to here I still don't understand... what transformation is going to be done next?"

"Yes. The mobile phone that was just popularized at that time will be used next. Is it a smart phone that senior Li Chuan is using now? Or an ordinary old-fashioned phone?"

"Well, it's just an ordinary mobile phone. It's not a smart phone, it has buttons..."

"Then, how does senior Li Chuan operate when he uses his mobile phone to input articles?"

"...like this, press the button at the bottom of the screen...that's how it works..."

Speaking of this, Li Chuan opened his eyes wide, as if he had noticed something.

"...Could it be...this number is..."

"Correct."

Xia Enxue nodded at him.

"—This records the input sequence of the phone's keyboard."

--I see.

Xia Ling finally understood.

Although he is using a smart phone now, he has used an ordinary mobile phone with a keyboard before, so it is very clear.It turned out that this was a secret code made by Li Zhi, who just got the mobile phone, using the input method as a clue.

"Essentially, you can think of the numbers in every two patterns as a set."

With that said, Xia Enxue took out a piece of paper with handwritten text on it.

then she,
"Let me read it out."

She walked forward slowly and began to read the words she had written.

Log using ciphers starting today.

There are two reasons.

Recently teachers have started to actively search mobile phones,
Getting caught using the phone because of the contents of the log is bad.

So in order not to be discovered by the teacher, write a diary with a code like this.

"—Just like that, it became meaningful."

Xia Enxue raised her head from the paper and looked at Li Chuan.

"At that time, in response to the sudden popularity of mobile phones, teachers in high schools began to strictly prohibit the behavior of bringing mobile phones to school. Not only would they confiscate mobile phones when they saw them, they would even actively search them. If there was any content about mobile phones in the logs, Li Zhi might be arrested. Ren knows that she has a mobile phone. It is probably for this reason that she thought of using a password to write a diary."

"So it is. Then..."

A little flustered, Li Chuan questioned Xia Enxue.

"There's another... another piece of paper, right? A paper with another reason..."

"Ah."

Xia Enxue simply nodded.

"Shall I read it?"

(End of this chapter)

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