4.3 分
好好………………………………………………………………………………………………………………………………………………………………………………………………………………好好…………………………………………好好
好…………………………………………………………………………………………好好…………………………………………………………………………好好
好………………………………………………………………………………………………………………………………………………………………………………………………………………好好………………………………好好……
好……………………………………………………………………………………………………好好………………………………………………………………………………好好