0 = 2
1 = 1
2 = -1
3 = -1
4 = 0
5 = -1
6 = -1
7 = -2
8 = -2
9 = -88
10 = -2
11 = -2
12 = -1
13 = -1
14 = 0
15 = -1
16 = 4
17 = 10
18 = 0
19 = -1
20 = 0
21 = -1
22 = 0
23 = -1
24 = 4
25 = 0
26 = 0
27 = 0
28 = 0
29 = 0
30 = 0