4. "24 Points" is a familiar math game to many people, the game process is as follows: arbitrarily draw 4 cards from 52 cards (excluding the jokers). Use the numbers on these 4 cards (from 1 to 13, where $A=1, J=11, Q=12, K=13$) to derive 24 using the four basic arithmetic operations. The person who finds the algorithm first wins. The game rules state that all 4 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.
If in one game, you happen to draw $2,5, \mathrm{~J}, \mathrm{Q}$, then your algorithm is: $\qquad$