cluster_id	sec_channel
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
12	2
13	0
14	0
15	0
16	0
17	1
18	2
19	0
20	3
21	2
22	3
23	0
24	3
25	0
27	2
28	0
29	0
30	0
31	0
33	2
35	0
36	0
37	1
38	2
39	3
41	3
43	3
72	3
74	3
76	3
77	3
78	2
79	2
89	1
90	1
91	1
97	3
98	1