Fei xing kong zhi xi tong zi dong kong zhi xi tong Zi dong kong zhi xi tong Fei xian xing kong zhi xi tong Fei xian xing kong zhi xi tong/ Fei xian xing kong zhi xi tong = Wei xing zi tai kong zhi xi tong Dian qi kong zhi xi tong dian qi kong zhi xi tong Ji suan ji kong zhi xi tong