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