5、 "24-point game" is a familiar math game to many people, the game process is as follows: arbitrarily draw 4 cards from 52 playing cards (excluding the jokers), use the numbers on these 4 playing cards (A=1, J=11, Q=12, K=13) to get 24 through addition, subtraction, multiplication, and division. The person who finds the algorithm first wins. The game rules state that all 4 playing cards must be used, and each card can only be used once. For example, with $2, 3, 4, Q$, the algorithm $(2 \times Q) \times (4-3)$ can be used to get 24 points.
Wang Liang, in one game, drew $8, 8, 7, 1$, and found that $8+8+7+1=24$. If a set of 4 cards that can be directly added to get 24 is called a "friendly card set," then the number of different "friendly card sets" containing the largest number as 8 is $\quad$ sets.
$\begin{array}{l}6, 3)(8, 7, 5, 4)(8, 6, 6, 4)(8, 6, 5, 5) \text { total } 9 \text { groups } \\\end{array}$