0 = 0
1 = 0
2 = -2
3 = -2
4 = 0
5 = -1
6 = -2
7 = -2
8 = -8
9 = -13
10 = -2
11 = -2
12 = -1
13 = 1
14 = -3
15 = 5
16 = 19
17 = 10
18 = 6
19 = -2
20 = -1
21 = 0
22 = -2
23 = 6
24 = 4
25 = 0
26 = 0
27 = 0
28 = 0
29 = 0
30 = 0
31 = 2
32 = 0