cluster_id	sec_channel
1	1
2	1
3	2
4	0
7	0
8	1
9	1
10	1
11	1
12	0
13	1
14	0
15	1
17	1
19	0
20	0
21	0
23	3
24	0
25	0
26	3
27	2
28	0
29	0
30	2
31	1
32	1
33	0
34	2
35	2
37	0
38	3
39	1
40	1
41	2
44	2
45	3
46	1
47	0
49	1
50	2
52	1
53	3
54	0
56	1
57	1
58	2
59	2
60	2
61	2
62	1
63	1
64	0
65	0
70	0
72	0
74	0
75	0
76	3
77	3
78	1
79	1
80	2
81	2
84	0
85	0
86	0
87	0
88	1
90	1
91	1
99	1
100	1
106	1
107	1
108	1