7.2.5.7这个24点是不是有两种方法

7, 2, 5, 7的24点答案：
1:7 + 2 × 5 + 7
2:(7 + 2 × 5) + 7
3:(7 + (2 × 5)) + 7
4:7 + (2 × 5) + 7
5:7 + (2 × 5 + 7)
6:7 + ((2 × 5) + 7)
7:7 + 5 × 2 + 7
8:(7 + 5 × 2) + 7
9:(7 + (5 × 2)) + 7
10:7 + (5 × 2) + 7
11:7 + (5 × 2 + 7)
12:7 + ((5 × 2) + 7)
13:7 + 7 + 2 × 5
14:(7 + 7) + 2 × 5
15:7 + (7 + 2 × 5)
16:7 + (7 + (2 × 5))
17:7 + 7 +(2 × 5)
18:(7 + 7) + (2 × 5)
19:7 + 7 + 5 × 2
20:(7 + 7) + 5 × 2
21:7 + (7 + 5 × 2)
22:7 + (7 + (5 × 2))
23:7 + 7 +(5 × 2)
24:(7 + 7) + (5 × 2)
25:2 × 5 + 7 + 7
26:(2 × 5) + 7 + 7
27:(2 × 5 + 7) + 7
28:((2 × 5) + 7) + 7
29:2 × 5 +(7 + 7)
30:(2 × 5) + (7 + 7)
31:5 × 2 + 7 + 7
32:(5 × 2) + 7 + 7
33:(5 × 2 + 7) + 7
34:((5 × 2) + 7) + 7
35:5 × 2 +(7 + 7)
36:(5 × 2) + (7 + 7)