cluster_id	sec_channel
1	0
2	0
4	2
6	3
7	0
8	1
9	1
10	2
12	1
14	0
15	3
16	3
17	1
18	0
19	0
20	0
21	2
22	0
23	0
25	0
26	2
28	2
30	0
31	0
32	0
33	0
36	2
37	2
39	2
40	2
41	3
42	3
43	1
44	1
48	2
50	2
51	2
52	2
53	2
54	2
55	0
56	0
59	2
61	2
62	2
77	1
78	1