cluster_id	sec_channel
0	2
1	0
2	0
3	2
4	1
5	3
6	0
8	0
9	0
10	2
11	1
12	1
13	3
15	0
18	0
19	0
20	0
21	0
22	0
23	0
24	1
25	2
26	0
28	0
29	0
30	0
31	2
32	1
33	2
34	0
35	3
36	3
37	0
38	0
39	0
40	0
41	0
42	2
43	1
45	1
46	1
47	0
48	3
51	3
52	3
59	1
60	1
61	2
62	2
63	3
64	3
65	0
66	0
68	1
69	1
70	1