两个小阴线夹着一根大阳线

An hour later, everyone divided Xuanhuang Tianwai Tian into ten areas. A special area, this is not used as a reward, but as a public activity area for Xuanhuang Tianwaitian. There are two first-class realms. These are the two realms with the best location in Xuanhuang Tianwai Tian, ​​even better than the realm of public activities. There are three pieces for the second-class domain, and four pieces for the third-class domain....