Dara, with a sharp movement, opened the room with number 27 and delivered the standard welcome message for Small-An:

"Peace be upon you, mercy and blessings," said Dara.

"And to you the same, are you the grandson of Mirza the Sage?" asked leaning forward from the chair, Section B Chief, Colonel Agabiy Shiralezade.

"Yes, I'm the grandson of retired general Firuza the Sage or Firuz Mirza, I'm coming to you from Baraz," Dara said with a broad smile on his face and grinning.

- Yes, you look the same nose, eyebrows, forehead! how is your grandfather? What is he doing? tell me? suddenly grabbing Daru by the shoulders, the colonel asked.

"Yeah, I'm his average grandson! Firuza the Sage, is doing well, has opened his own shop, makes oriental sweets with his grandmother, swears, has fun in one word!" calmly looking into the eyes of the colonel, Dara felt calm, all the anxiety went somewhere. This is a subordinate of grandfather.

- Lucky! Here is the old grunt! But don't dare to tell him about it or he will take me from the light! suddenly caught on Agabiy Shiralezade.

"Yes, no, grandfather will not do anything to you, he's peaceful with us, except that he will play a trick on you." Dara said with a grin.

- Here are his jokes everyone was afraid of running. Involuntarily startled and shrugged his shoulders with a white face and sweaty hands, speaking not naturally in a quiet voice, Agabay noted.

- Do not tell him, but in return I will help you out of friendship! said the colonel.

"Well, I was just looking for data ... for my thesis. I found some strange numbers and letters, now I'm looking for confirmation of them," Dara answered a little embarrassed.

- "Show me what this data is," said Agabay.

- By the way, you can call me Elder brother Agabay, I was younger to your grandfather. With a grin, he declared.

Thank you for your kind words, said Dara, smiling.

Big brother, I wanted to find out what these numbers are 47086_1?

"Well, you give?" I can't say so, let's see the catalog. By the way, houses were built in 1927, after they were built in 1931, and the last series was before the Second World War. " in 1939. I remember this, because I myself live in such a house, "Agabay said.

Very interesting! So what are these numbers, a kind of code? marveled at Dara.

- Like, look at the catalog, we will consider 4 such types of houses and 7 locations on a city map. Said Colonel Agabay.

Which one? What's next? asked Dara.

- "What's next? Here is the number 08, somewhere in the center, next to the old fortress .... "" But it is very interesting "?! "Ahahahahahaha" laughed bitterly at Aghabay.

Which one? What it is? He began to repeat his question to Dara.

"Ah, that's interesting, series 6 means there is a bomb shelter in the house. Surprisingly, I did not know that under an ordinary residential building there could be a bomb shelter, even built in 1939, this is very curious, "smiled Agabey.

Then what does the number 1 mean? asked screwing up Dara's eyes.

- 1? These are 7 rooms, each of which has at least 30 people. Agabey noticed.

one? This means that the bomb shelter contains surprisingly 1 type, not 2.

"First, kha-kh-kha"? coughing asked Dara.

"Well, you know, before the war they built more than the second type of bomb shelter, they were calculated only from the shock wave and not the hit of the projectile or bomb. Usually they were created for civilians. They are cheaper in their construction," explained the colonel.

"Big brother, what is the first type then?" asked Dara.

"The first type, in the pre-war period, was mainly created for senior officers and command posts. They were designed to withstand a bomb weighing 500 kg. Bomb shelters could be located in the basement or next to the house 10-15 meters away. The specification is now you can easily find it in civil defense textbooks. " Agabey noticed.

"So what does it mean senior officers lived in the house?" "Senior officers" Dara repeated his question again.

Wow, it seems I now know where to look, Dara thought, rubbing his hands and quietly repeating to himself, it means in the basement or near it!

"What are you interested in?" "Would you like to have a look"? asked the laughing colonel.

"Yes, yes, big brother, I really want to see it!" enthusiastically answered Dara.

And he himself thought in his head, how am I going to go to someone else's house, how I'll stick into the basement, I don't know where the entrance to the bomb shelter is, and if it is in the yard. Will I open the hatch, what will the neighbors say? Will they call a police outfit ?!

"Well, I was just interested in this bomb shelter myself, let's go together!" "By the way, come to my house tomorrow, Baraz knows where I live, we'll talk, and there we'll go together!" said Agabei.

"Wow, how great!" Enthusiastically echoed Dara.

"By the way, have you found a girlfriend yet?" as if insignificantly asked Agabei.

"No, what are you ?! Elder brother, there is no time, study and study, and Grandfather would have beaten down with a log if that! We have an old school" shaking his hand uncontrollably, confused, sweating profusely answered Dara.

"Wow, that means you are afraid of Grandfather!" "Ahahhahaaha!" "He can catch fear!" "I spoke about this before," Agabei remarked with wide arms.

He smiled at something, Dara did not notice it. And if he was a policeman, I would understand that Agabei started a scam. And he, Dara, should be more attentive to the old rogue!

How does the Eastern proverb say - if youth knew? If old age could ?!