cluster_id	sec_channel
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	1
8	0
9	0
10	0
11	1
12	1
13	0
14	0
15	1
16	1
17	1
18	1
19	1
20	2
21	1
22	1
23	1
24	3
25	2
26	3
27	0
28	3
29	2
30	2
31	3
32	0
33	1
34	0
35	0
36	1
37	1
38	0
39	0
40	1
41	2
42	1
43	0
44	2
45	3
46	2
47	3
48	0
49	0
50	0
51	2
52	0
53	1
54	1
55	1
56	1
57	1
58	0
59	0