cluster_id	sec_channel
0	0
5	0
6	0
8	2
9	0
10	0
11	0
12	0
13	0
14	0
15	1
18	0
22	0
23	0
24	2
27	2
28	1
30	0
35	1
42	1
44	1
45	0
46	0
47	2
48	2
49	0
50	0
53	2
54	2
55	0
56	0
57	2
58	2
59	2
60	2
61	2
62	2
63	2
64	2
65	0
66	0
67	2
68	2
70	2
71	2
72	2
73	1
74	1
75	2
76	2
77	2
78	2