cluster_id	sec_channel
0	1
1	2
2	1
3	3
4	0
5	1
6	0
7	3
8	3
9	0
10	0
11	2
12	0
13	0
14	0
15	0
16	2
17	2
18	0
19	0
20	0
21	1
22	0