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