cluster_id	sec_channel
1	1
2	3
3	3
4	2
5	2
6	1
7	1
10	2
11	3
12	3
14	3
19	1
21	2
22	1
23	0
24	0
25	2
27	3
28	3
29	0
30	0
31	2
32	3
33	2
34	3
35	1
37	1
38	2
40	2
41	2
43	0
45	0
46	0
47	0
48	0
49	0
50	1
51	1
52	1
53	1
56	1
57	1
58	1
59	1
60	1
61	1
62	0
63	0
64	1
65	1
66	1
67	1
68	3
69	3