Each color has four, because it is not a complex connection of the same color, such as green green, green green 1, green1; Another green color can also be: green, green 1, green 1. There are three possibilities for each, so there are 48 connection modes as follows: green, green 1, green 1, green 1, green 1, green 1. The rest of the powder is the same as red, but the color is different, so I won't write them one by one.