Which VISA should I apply for? And If Hong Kong Visa, if I give the Macau flight itinerary will it be ok?

Hi, I am holding a PRC passport. I am visiting Hong Kong for 3 days and then followed by Macau for 4 days. My flight is from Singapore to Macau, after which I will take a ferry to Hong Kong for the first 3 days and go back to Macau.