cluster_id	sec_channel
3	0
4	2
6	0
7	2
8	0
9	0
10	3
11	0
13	0
14	1
16	0
17	0
18	0
19	3
20	0
21	0
22	0
23	2
25	1
28	2
31	0
32	0
34	0
35	0
36	2
37	2
38	3
39	3
40	0
41	0
48	0
49	0
51	2
52	2
53	2
56	0
57	0
59	0
61	0
62	0
63	0
66	0
67	0
68	0
69	0
70	1
71	1
73	1
74	0
75	0
76	1
78	1
80	1
85	1
86	1
89	1
90	1
94	1
95	1