You can't. The floor of a school with compulsory education students in Xiamen should not be higher than the fourth floor, so the fourth floor of Xiamen off-campus science and technology training institutions is not allowed. Xiamen, referred to as Ludao for short, is a prefecture-level city, a sub-provincial city, a city with separate plans and a first-class big city under the jurisdiction of Fujian Province. It is a special economic zone in China and an important central city, port and scenic tourist city in the southeast coast approved by the State Council.