1 * X
2 * X
3 * X
4 * X
5 * 2
6 * 2
7 * X
8 * X
9 * X
10 * X
11 * X
12 * X
13 * 2
14 * X
15 * X
16 * X
17 * X
18 * X
19 * 2
20 * X
21 * X
22 * 1
23 * X
24 * X
25 * X
9 - 8 = 1