Serial sin

Chapter 423 Permutation and Combination
Returning to Han Bing's detective agency, Ouyang Shuangjie was filled with emotion.

This is not the first time he has come, and this time, it should be the third time. Every time the owner of the detective agency is not there, especially this time, he will not be there.

Ouyang Shuangjie pushed open the door, and Team Wu said softly, "If you don't need my help, then I'll wait for you outside."

Ouyang Shuangjie smiled: "Come in together, it's not like I haven't been here before." Wu Dui also smiled embarrassedly: "I know discipline."

Ouyang Shuangjie didn't force him, and walked in alone, Wu Dui helped him close the door, and stood outside alone, lighting a cigarette.

Ouyang Shuangjie turned on the light, looked around, and found that a thin layer of dust had already accumulated.

He slowly walked to Han Bing's desk, looking at the professional detective tools left by Han Bing, he felt an inexplicable sadness.

Han Bing is dead, and he will not come back.

Ouyang Shuangjie was thinking, what kind of secrets did Han Bing leave behind in the micro-hard drive, and what kind of work did Han Bing and Yan Zhou do these years?
Ouyang Shuangjie was a little excited, because as long as he could find the key to open the hard drive here, all mysteries would be solved.

He was also a little nervous, afraid that he would not find the key to open the door to the treasure house.

So he searched very carefully. He didn't want to make any omissions. He himself felt a little ridiculous. How could he have such a feeling of worrying about gains and losses.

He clearly knew that this case was coming to an end, as long as the hard drive was opened, the mysterious veil covering the whole case would be completely lifted.

An hour passed, and another hour passed, but Ouyang Shuangjie didn't get anything. He searched several rooms carefully several times, but he couldn't find what he wanted.

Team Wu didn't urge him. Judging from Ouyang Shuangjie's cautiousness, Team Wu knew that what Ouyang Shuangjie was looking for must be very important, although he didn't know what it was.

Finally, when the third hour passed, Ouyang Shuangjie finally gave up.

He came out, and Wu Dui came up to meet him: "Have you found it?"

Ouyang Shuangjie shook his head with a look of frustration.

Team Wu said: "We haven't touched anything about his stuff, not even moving it. I think if you're sure there's this thing, then it must be there."

Ouyang Shuangjie smiled wryly, he was not sure whether Han Bing really put the key here.

He looked at the small signboard of "Han Bing's Private Affairs Studio", and suddenly his pupils shrank.

Dui Wu looked at him suspiciously, and then at the signboard. He really couldn't see why Ouyang Shuangjie had such an expression.

But Ouyang Shuangjie knew it himself, because he discovered a "secret", he was secretly happy, because the "secret" he discovered was very interesting. Arranging letter abbreviations, this abbreviation is very irregular from the perspective of Chinese pinyin or English, no matter where it is leaned on, it is not in tune.

This is an obvious mistake. Of course, his studio is very large, and it is impossible to undertake any foreign affairs business. That nonsense initials are bluffing in the eyes of many people, right or wrong Well, harmless.But Ouyang Shuangjie didn't think so at the moment.

Those letters are: SHBYPJS.

There is still a gap between the first letter S and the following string of letters.

"Old Wu, don't you think there is something wrong with the abbreviation of the English letters?"

Team Wu looked at it seriously: "HB should be Han Bing, I don't know about YPJS, I remember private affairs should be private affairs, right?"

Ouyang Shuangjie nodded, and Team Wu continued: "It's okay for him to use a P for personal affairs, but there is a Y in front of it, and what is JS? The studio either starts with S or W, and he uses S." , but there is an extra J in front, which is even more unreasonable if it is a Chinese pinyin. Also, the S in the front seems to exist alone.”

Ouyang Shuangjie laughed, and Wu Dui couldn't explain it, that's right, if Wu Dui could have another explanation and it was reasonable, then Ouyang Shuangjie would fall into depression again.

Ouyang Shuangjie carefully copied all the letters. He felt that this might be a loophole deliberately left by Han Bing, and this letter might be the key to unlock the hard drive.

Although he couldn't have a reasonable explanation for these letters, this may be the only clue he can find in these lines.

"Old Wu, thank you for wasting your precious time." Ouyang Shuangjie said goodbye to Team Wu before leaving Cold City.

He rushed back to Lincheng overnight, and he kept thinking about this string of letters in his mind all the way, without a solution!
He couldn't give a reasonable explanation for this string of letters, so he couldn't help calling Xiao Yuanshan, told him this string of letters, and asked them to try first to see if they could open the hard drive with this string of letters.

But soon Xiao Yuanshan received a message. Xiao Yuanshan said that he had tried it, but he was still prompted that the password was wrong.

Ouyang Shuangjie was on the expressway, he was a little anxious when he heard the news, he asked if it might be another arrangement of this group of letters, Xiao Yuanshan smiled: "Ouyang, don't worry, take your time. "It was only then that Ouyang Shuangjie felt that he had lost his composure. There are a huge number of combinations of this group of letters, so you can't try them one by one.

After hanging up the phone, Ouyang Shuangjie's originally excited mood calmed down. Could it be that he really made a mistake, and that string of letters is not a key?
Impossible, Han Bing is a smart person and he is very organized in doing things, how could he do meaningless things.

But what does this string of letters mean, and how should the key be deciphered from it?
Ouyang Shuangjie returned to the criminal police team with this doubt. It was already past one o'clock in the morning.

Xiao Yuanshan is still on guard in the police station, usually when encountering serious cases, they will not be able to take a good rest.

"It's been a busy day, so you're tired. Let's go back to the office for a while. I'll keep an eye on other things." Xiao Yuanshan was very considerate.

Ouyang Shuangjie shook his head, and sat down at Xiao Yuanshan's desk: "I'm hungry, let's order a takeaway." Xiao Yuanshan personally ordered fried noodles for him.

"Old Xiao, listen to me, I'm sure the key must be in this string of letters, as long as we find out its permutation and combination." Ouyang Shuangjie still insisted that the string of letters he found was the key.

Old Xiao said: "I have already arranged it, let them try more, do you know how many permutations and combinations these seven digits have?"

Ouyang Shuangjie was also very bitter in his heart: "I know, if the first place is not zero, it should be 900 million!"

Xiao Yuanshan stopped talking, there are 900 million permutations and combinations, and it would take an unknown amount of time to try each of them, this is simply ignorance.

(End of this chapter)