1. College of Mathematics, Physics and Information Engineering, Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
2. Songyang NO.1 Middle School, Lishui, Zhejiang, People's Republic of China
3. Department of Mathematics, Harbin Institute of Technology, Harbin, Heilongjiang, People's Republic of China
4. Traditional Chinese Medicine Hospital of Jiaxing, Jiaxing, Zhejiang, People's Republic of China