How much is the cheapest accommodation in the Third Ring Road in Beijing?

I wonder where you want to be near the Third Ring Road. I wonder if it could be semi-underground. Xuanxi Hotel's second ring road is half underground 120 one night, and the subway station is just outside. The room type of Dongrong Hotel around Beijing West Railway Station is about 100. The specific location can be searched on Baidu. As for the traffic within the Third Ring Road, traffic is not a problem, and the subway bus is very convenient. Baidu Maps