6+ 1, 6 red balls in front and 1 blue balls behind. The second interview means that you can choose more than six red balls in front and more than three blue balls in the back. If you choose 13 red ball and three blue balls, all lottery numbers are included in the red ball number you choose, and you win the prize. If basketball also wins, it will be the first prize, which will improve the chances of winning, but you have to spend more money on it. If it is 7+ 1,. It needs more money to buy later. . . . Personally, I still don't want to buy a duplex The two-color ball is a small probability thing. How to copy or small probability? The lottery is just a small bet after dinner. Don't expect to get rich on him. Good luck winning the lottery. {I hope you can understand the unclear place}