cluster_id	sec_channel
0	2
1	3
2	0
3	0
4	2
5	1
6	0
7	2
8	0
9	0
10	3
11	0
12	0
13	0
14	1
15	0
16	0
17	0
18	0
19	3
20	0
21	0
22	0
23	2
24	0
25	1
26	0
27	0
28	2
29	2
30	1
31	0
32	0
33	0
34	0
35	0