On the stairs in the middle of the stand, an instructor is snuffing out soot and throwing it into the drain. ◢ With ◢ Dream ◢ Xiao ◢ He raised his head, and a student in the zero class on the playground was running from this end. He recognized it as "dumb".

The instructor yawned and leaned into the stands, intending to take a nap, when he was soon awakened by the sound of approaching footsteps.

"Instructor."

The instructor half-opened his eyes and glanced at Li Weiyin.

"What's the matter?"

Li Weiyin swept around with his peripheral vision, approached him, and said in a voice that only two people could hear:

"I know about the tin."

After that, he looked at the instructor with blazing eyes, and stared at the instructor with a confused face:

"What nonsense are you talking about? Did Instructor Liang let you run enough laps? Want to cut corners, right? ”

The instructor's tone became higher and higher, and Li Weiyin quickly bowed down, said "sorry", and continued to run along the track without looking back.

His gaze was fixed on another instructor who was admonishing the students in the distance.

"Instructor."

"What? Don't you see I'm getting down to business? ”

"I know about the Tin Man?"

"Westerners? What's that? ”

"Excuse me."

I tried several instructors in a row, and the answers I got were pretty much the same. Li Weiyin had already run three-quarters of a lap, and his eyes glanced at Instructor Wang, who was lying in the stands napping.

He recognized Instructor Wang as the instructor who watched Lan Silin's conversation with his "sister" that day.

So he stepped forward.

"Instructor."

Instructor Wang sat up in a daze:

"What's the matter with you?"

"I know about the tin."

Instructor Wang had a faint hint of surprise on his face, sat up straight, and patted the back of his neck inadvertently:

"What are you talking about?"

Li Weiyin blinked slightly and said:

"It's Lan Silin's book."

"Books?"

Li Weiyin closed his eyes, opened them for a while, took a deep breath, and said:

"—the one he took away."

Instructor Wang's eyes suddenly widened. There was clearly a bit of panic in his expression that he couldn't hide in time.

"I don't know what you're talking about......"

Li Weiyin didn't explain anymore—he slowly reached into his pocket and pulled out a crumpled ball of paper.

"This is, the last page of that Tin Man...... He tore the page off and left it for me. ”

Instructor Wang stood up suddenly:

"When did this happen?"

"It's what Fang Chang gave me at noon today."

Instructor Wang took a "hiss" breath, looked left and right, and confirmed that no one could hear the conversation between the two, bowed slightly, and lowered his voice:

"What is he going to do here?"

Li Weiyin shook his head.

"I don't know."

After a pause, he continued:

"However, he left a code word on the paper."

"Secret words?" Instructor Wang raised his eyebrows, hurriedly snatched the note, and carefully opened it for study.

Li Weiyin took advantage of this moment and continued:

"He wants to tell me something, something that can't be ...... you Something that can't be known to the instructors and teachers of the academy. ”

After a pause, he added:

"—I think, maybe it has something to do with the escape from the academy."

Instructor Wang suddenly pulled his face out of the piece of paper and eagerly pressed Li Weiyin's shoulder:

"Tell me the details...... Wait a minute! ”

Instructor Wang pushed Li Weiyin away slightly, raised half of his eyebrows, and looked at him suspiciously for a while:

"Why are you telling me this? You're not cheating, are you? I'm telling you, I'm smart, don't you want to play any bad ideas......"

Li Weiyin said calmly:

"You can be exempt from responsibility for reporting your classmates, right?"

Instructor Wang was stunned and scratched his hair.

"This is indeed the rule of our school."

Li Weiyin also said:

"I got 50 laps off, and now I have 28 laps left and I can't run anymore."

Instructor Wang blinked, quietly said "oh-", suddenly realized, and pulled Li Weiyin to the edge of the stands, a little away from several instructors nearby, and hooked a hand on his shoulder.

"Come on, come on...... Tell me about that codeword. What else does Lan Silin want to make? ”

Li Weiyin groaned for a moment and explained:

"Based on the contents of the note, he wanted me to get a certain 'thing' in the box. I think...... That thing should be that book. ”

With that, Li Weiyin quickly raised his head and looked at Instructor Wang. After Instructor Wang heard this, a little apprehension appeared on his face.

After Lan Silin stole the book, she put it back in the box. Li Weiyin thought to himself, frowning slightly.

"But...... I've read this note several times, and I don't see any code words on it. ”

"The code words are not on this piece of paper. It should be in the book. Books are just tools for decoding. ”

"What does that mean?"

Li Weiyin truthfully explained what he saw and heard:

"I often see Lan Silin scribbling alone in a place where others can't see, what he writes seems to have no practical meaning, just a string of garbled characters, but I think those garbled characters are actually regular, if there is a reference, you can decipher the true meaning of that password......"

"As for the reference for cracking those codes, I think it's the book he put back in the box."

Instructor Wang's eyes widened:

"Why do you think that?"

"Because he tore out the last page of that book and left it for me...... This in itself is a hint. ”

Instructor Wang will be suspicious:

"Why would he leave this thing to you?"

"I think he wants to help me get out of the academy."

"You two...... Is the relationship good? ”

"He sat across from me every time I ate, but we didn't speak."

Instructor Wang thought for a while, and suddenly shook his head like a rattle:

"What kind of password is messed up, everyone else is gone, what else can you do, are you talking nonsense?"

Li Weiyin did not argue, looked up at him, and asked:

"Do you have a pen?"

Instructor Wang muttered for a while, but still took out a pen from his pocket. Li Weiyin took it, and without thinking about it, he put the scratch paper on the stand and wrote a code word in the margin.

setii--

Instructor Wang stared at this line of words for a long time, but he didn't figure out the mystery.

"What does that mean?"

"It's a simple character-split password. Different forms of carriers are used to represent a set of numbers, and each set of numbers represents a different meaning. ”

Li Weiyin deduced him step by step with a pen:

"Set is an abbreviation for sevent, and in the same way, 60 (sixt) is written as sit, and 24 (tent-four) is written as tt-fr; ii is the Roman numeral 2,-- this is Morse code...... Then, this symbol is more complicated, at first I thought it was scribbled, but later I found that it also has a pattern, corresponding to the horizontal number keys corresponding to the upper gear key on the standard computer keyboard, that is, ! =1，=2，=，￥=4，=5，……=6，≈ap; =7……”

"Okay, okay, okay, you just say the conclusion."

"The conclusion is that after this string of passwords is cracked, you can get a string of numbers: 70, 2, 5."

Li Weiyin moved the tip of his pen up again, pointing to the original text on the last page of "Tin Man".

"Page 70, paragraph 2, sentence, word 5, right on this piece of paper."

"Tin Man" is a thin fairy tale picture book. The last page happens to be page 70, and according to the law described by Li Weiyin, the tip of the pen happens to point to the word "find".

Instructor Wang looked at Li Weiyin's paper blankly and swallowed slowly.