After three days and three nights, I came out of my room and looked at all the quiet factories. I thought that these days had passed well, and nobody came to disturb us these days. It seems that this place is also a holiday resort.

: I came to the workshop to turn around in my spare time, but found that there was no one in the workshop. I had some doubts, I did not know what was going on, and then walked towards the back yard.

When I came to the back yard, I saw that it was quite quiet. There were few employees in the yard, only a...