杨碧巧 says:

"Speaking of this, I have to blame me for being stupid, there is no vigilance, last night, we checked the accounts of the teaching building project of the first middle school in the city, I slept with Yajuan for more than two hours, and went to work after getting up and washing hastily, the two of us just walked near the bus stop, and a car drove on, and there were two young people sitting on the car, which was just knocked down by you, they said that they were your classmates, just met you, and you invited them to pick us up, and went to the municipal party committee to reflect the quality of the teaching building project of the first middle school in the city. I got into the car without thinking about it, Yajuan was hesitating, I pulled her into the car, and as soon as we got in the car, the two guys pulled out their guns, and just like that, we were brought here by them. ”

Li Yajuan said:

"This can't be blamed on Bi Qiao, their target was us, there were few people near the bus stop at the time, even if we didn't get on the bus, they would force us to get on the bus, two young men with guns, can we two women resist?"

Xiang Tianliang nodded, "That's right, this Chen Qingyun came prepared, although Jihua is unprofessional and a little reluctant, but it is quite effective, now that you are fine, I will rest assured." ”

Li Yajuan smiled and asked, "Eighth Master, what happened to you and Sister Meilan must be very tortuous and difficult, right?" ”

"Alas, it's hard to say, let Sister Chen say it."

Chen Meilan recounted the day's encounter.

Yang Biqiao's eyes straightened when she heard this.

And Li Yajuan followed Xiang Tianliang to take risks, and she was already surprised.

Yang Biqiao asked, "The four people outside the door were all killed, right?" ”

Nodding, Xiang Tianliang said confidently: "They didn't die at the time, but they couldn't get out of this courtyard." ”

“weishenme？” Chen Meilan asked.

"I fired a total of 10 shots, in order to grab time, the first four shots were not accurate, did not hit the vital parts, but they could make them lose their ability to resist, but the last six shots I aimed at, it can be said that the guns are deadly."

"That'...... Then they're all dead? Yang Biqiao said.

"I hit them in the artery, so they are not dead yet, but their blood is leaking out, and they can't save themselves, and when their blood is gone, their lives will be gone."

Chen Meilan said: "Eighth master, you are ruthless enough." ”

Li Yajuan said: "It's ruthless, we can't get out now, we can't let them get away with it, besides, if that Chen Qingyun escapes safely, it will pose a threat to Yu Zhonghao, Xiao Jiannan and Shao Sanhe, although they are all masters, but after all, they are in the Ming place, and they don't know that Chen Qingyun is looking for revenge, and it is likely that Chen Qingyun will succeed." ”

"Sister Li is right, they must die." Nod to the sky.

Yang Biqiao said: "What about us? ”

Chen Meilan also asked, "Yes, how do we get out?" ”

Xiang Tianliang smiled and asked, "Are you afraid?" ”

"I'm not afraid, I believe that the eighth master has a way." Li Yajuan said.

Chen Meilan said: "I'm not afraid of death. ”

"Yes, we have to go out and report the problem of the teaching building of the No. 1 Middle School in the city to prevent the tragedy."

Xiang Tianliang pointed to the wine cabinet and pantry, and said with a smile: "Don't we have seven more days?" With those wine and food, we can hold out for seven days, and with seven days, we can break Chen Qingyun's password switch system. ”

Li Yajuan asked, "Do you know the password switch system?" ”

"Hehe......"

Chen Meilan said angrily: "Sell Guanzi again." ”

"Eighth master, let's talk about it quickly." Yang Biqiao pushed towards Tianliang.

Xiang Tianliang said: "This password switch system, is an ancient security system, in the final analysis, it is a number game, just like we often see the lockbox safe, the lock on each door, is a combination lock, you can go to see, as long as you enter a pre-set number, the password lock will be opened, but, easier said than done, first, we have to know that this password is a few digits, second, we use the method of finding a needle in a haystack, one number to the past, Until you find the right number. ”

The three women walked to the front door, and sure enough, they saw that there was a knob on the iron door, which could be turned at will, and around the knob, there were numbers from zero to ninety.

Xiang Tianliang continued: "You can try, the knob is different from the design on the general safe, it can not only be rotated, but also can be pulled outward, if you turn the knob onto a certain number, think it is the right choice, just pull it outward, indicate confirmation, and then look for the next number, until the whole set of correct numbers is found, as long as one of the numbers is wrong, this set of numbers is wrong......"

"It's like looking for a needle in a haystack." Li Yajuan sighed.

Xiang Tianliang threw away the cigarette butt, moved a chair, and sat down by the main entrance.

"You three are optimistic, I'll demonstrate it first, and then, the four of us will start taking turns looking for needles in a haystack."

Chen Meilan asked, "Eighth Master, don't we have any other way?" ”

Xiang Tianliang shook his head, "Chen Qingyun studied precision machinery in college, and studied in Germany for three years, this is what he learned, I have seen it after I entered the door, he is very delicately designed, we have to break his password lock, there is no way to be opportunistic, only honest, the old cow pulls the cart, and breaks it step by step." ”

Yang Biqiao suddenly said: "We are all stupid." ”

"What's stupid?" Chen Meilan asked.

Yang Biqiao said: "Sister Meilan's bag, isn't there a big brother, let's call the police, won't we be saved?" ”

When Xiang Tianliang heard it, he was happy again.

"Huh...... I'm not stupid, it's Sister Yang, you're stupid, stupid girl. ”

"Am I not right?" Yang Biqiao asked.

Xiang Tianliang said with a smile: "The question you asked, Chen Qingyun has thought of it a long time ago, this room has long been shielded, this is the basic design requirement of this system, that is to say, this room is isolated from the world except for air, and we can't receive any kind of radio waves." ”

Chen Meilan took out the big brother and tried to dial it, but sure enough, there was no signal.

"The eighth master is right, let's do it honestly."

"Look, I'll demonstrate it first."

Xiang Tianliang put away his smile, "Let's assume that the password set by Chen Qingyun is a three-digit number, then we will start with the first three-digit number, zero-zero-zero." ”

As he spoke, Xiang Tianliang's hand held the knob and rotated it slightly, turning the pointer on the knob to the word "zero", stopping, pinching the knob and pulling it outward, then pushing the knob back, turning to the word "zero" again, pulling again, pushing again, and so on, after the third word "zero" was completed, his other hand grabbed the doorknob above the knob and pulled it out......

"Do you see it all?"

"Got it." The three women replied in unison.

Xiang Tianliang stood up, "Now I assign the task, we take turns to do this work of finding a needle in a haystack, the three of you, each one hour at a time, I have two hours, one person works, and the other three rest to conserve physical strength, Sister Yang is the first, Sister Chen is the second, Sister Li is the third, I am the fourth, start with three digits first, and go up in turn, everyone pay attention, it is better to repeat than to miss a number, for example, like 'zero zero zero' and 'zero zero zero zero' and so on, Sister Yang, let's start." ”

Yang Biqiao responded, sat down and started "work".

Xiang Tianliang returned to the couch and sat down.

Chen Meilan and Li Yajuan also came over.

"Eighth master, this method doesn't work." Li Yajuan said.

Chen Meilan said: "Yes, there are 1,000 three-digit numbers, 10,000 four-digit numbers, 100,000 five-digit numbers, and this alone adds up to 11,000 figures, I just looked at it, and the fastest way to complete six numbers per minute is at most, so that we will take 300 hours to complete these 11.10 thousand numbers, and this is not counting the 1 million six-digit numbers and the 10 million seven-digit numbers. ”

"Sister Chen, you can calculate so quickly, you deserve to be an accountant." Xiang Tianliang praised.

Li Yajuan asked, "Do you know it in your heart?" ”

"Yes."

"Say it quickly."

Xiang Tianliang said: "When I was in college, there was a teacher, who was an expert in this area, he once told me that the complexity of this kind of combination lock is determined by the mechanical device inside, that is to say, three digits, four digits and five digits, the design inside it is different, Chen Qingyun designed the steel fortress, I just saw his door, the thickest will not exceed ten centimeters, in a space ten centimeters wide, there are not enough tools, it is impossible to make a password system of more than six digits, Chen Qingyun is good at design, and the specific production, he is not necessarily good at, so the password switch system he manufactures will not exceed five digits. ”

Li Yajuan nodded and said: "One digit and ten digits are impossible to be used at all, that is, the password must be in three digits, four digits and five digits." ”

"It will take at least three hundred hours, twelve or three days." Chen Meilan Road.

Xiang Tianliang smiled and said, "At your speed, eleven and ten thousand numbers, there is no six hundred hours that you can't get it." ”

"But we only have eight days." Li Yajuan said.

Xiang Tianliang said: "If my guess is right, the password set by Chen Qingyun should be a four-digit number." ”

Li Yajuan said: "If it's four figures, we have enough time." ”

"Eighth master, then why don't we start looking for it directly from the number of digits?" Chen Meilan asked.

Xiang Tianliang said with a smile: "Three digits are also possible, on the other hand, it is also for you to practice your hands." ”

Li Yajuan smiled, "Eighth Master, you take a rest first, I'll go check the wine and food, divide it into eight portions, and supply it to a fixed number of people every day." ”

"Hehe, can I sleep, can I sleep?"

Xiang Tianliang smiled, with a bad face.

Chen Meilan and Li Yajuan saw Xiang Tianliang's ill intentions, and their faces turned red, "What are you going to do?" ”

"Hehe, being idle is also idle, we might as well communicate in depth, just when I cheer for you."

Deep, communication, exchange, come on, these words popped out of Xiang Tianliang's mouth, and the special meaning they contained was already familiar to women.

Without waiting for Xiang Tianliang to make a move, Chen Meilan and Li Yajuan fled with a smile.

This so-called steel fortress soon became a special battlefield......