A certain office supply store stocks 2 sizes of self-stick notepads, each in 4 colors: blue, green, yellow or pink, the store packs the notepads in  packages that contain either 3 notepads of the same sizes and the same color or 3 notepads of the same size and of 3 diffreent colors, If the order in which the olors are packed is not considered, how many differnt packages of the types describled above are possible?

6, 8 16,24,32.我题目看不懂！！！