cluster_id	chan_grp
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	0
9	4
10	0
11	3
13	0
14	5
15	5
16	4
19	7
20	6
21	7
23	7
24	4
25	0
26	0
27	0
28	3
29	3
33	6
34	6
35	6
36	6
39	7