t. One side of the wall climbed into the building, and as long as he turned a turn away from the guard’s sight, he could get up and walk upright.

Tianyi wriggled forward like a worm, and it took five minutes to turn to a corridor next to him. Here he was much more relaxed, and he could sit with his back against the wall and take a breath.
When Tianyi pretended to be a courier to deliver the woodcarvings, he was optimistic about the location of the camera probe above his head and the other three going inside. He noted the appearance and investigated the product of this model. Based on the performance of this gadget and the situation of previous investigations, it can be concluded that the probes in this building are at a fixed angle and will not always be patrolled like those outside. Someone has to control them to turn their angles.
The coverage of this probe is very large. Tianyi built a virtual three-dimensional model of the lobby of this building with the accuracy of centimeters on the computer, and calculated it in accordance with the height of the camera installation, the lens angle and the viewing width, and the conclusion is that he must be tight. Climbing against the wall is good. The length and width of the portable refrigerator are also used here as a ruler. Push it horizontally in front of the face. If the body protrudes beyond forty centimeters, it may enter the edge of the camera lens.
The guard in the guard room quickly noticed that one of the many monitor lenses had become a snowflake. He looked closer, frowned, put down his coffee and e-reader, and took it from the wall. With the next set of keys, I walked out of the guard room.
The security measures for this building are actually very loose, as can be seen from the fact that there is only one doorman who does not patrol at night. There are not as many cameras in the building as there are in the main building of the Louvre. In this building, except for the toilets, almost every inch of the ground is under surveillance. But here is not so st