Where is a convenient, cheap and safe place to live in Zhengzhou?

There are many simple dormitories near the university, because students usually patronize more, so it is cheaper and relatively safe. For example, if you are near the railway station, you can find one on the road opposite the East Gate of Zheng Da. If it is a navigation road, it is on the road opposite Zhengzhou Hangyuan. Anyway, just find a place with a university and you can find a suitable place. . . Usually 20 to 40 a day. I wonder if there will be more air conditioners. It shouldn't be much.