More painful. I read those books every day, and I can't stand them. I just want to play with my mobile phone. A semester plus a double degree requires about 10 subjects, more than half of which are mathematics and the rest are finance. Is to take an exam and immediately reinstall the system to meet the next one. Reloading 10 times a week. There is no need to uninstall, because my mind will be blank after the exam.