有一种叫“二十四点”的游戏，

1: (11 - 2 + 3) × 2

2: ((11 - 2) + 3) × 2

3: (11 - (2 - 3)) × 2

4: (11 + 3 - 2) × 2

5: ((11 + 3) - 2) × 2

6: (11 + (3 - 2)) × 2

7: 2 × (11 - 2 + 3)

8: 2 × ((11 - 2) + 3)

9: 2 × (11 - (2 - 3))

10: 2 × (11 + 3 - 2)

11: 2 × ((11 + 3) - 2)

12: 2 × (11 + (3 - 2))

13: 2 × (3 + 11 - 2)

14: 2 × ((3 + 11) - 2)

15: 2 × (3 + (11 - 2))

16: 2 × (3 - 2 + 11)

17: 2 × ((3 - 2) + 11)

18: 2 × (3 - (2 - 11))

19: (3 + 11 - 2) × 2

20: ((3 + 11) - 2) × 2

21: (3 + (11 - 2)) × 2

22: (3 - 2 + 11) × 2

23: ((3 - 2) + 11) × 2

24: (3 - (2 - 11)) × 2