# rank: switch-group id, switch id, port number (this line will be skipped)
0: 0 2 13
1: 0 3 1
2: 0 2 15
3: 0 0 13
4: 0 2 2
5: 1 2 12
6: 0 2 6
7: 1 1 1
8: 1 3 2
9: 1 3 14
10: 1 2 4
11: 1 1 13
12: 1 2 10
13: 0 1 13
14: 0 2 12
15: 0 1 0
16: 1 0 15
17: 0 0 0
18: 0 2 10
19: 0 3 4
20: 0 0 10
21: 1 3 8
22: 1 1 2
23: 1 1 3
24: 1 1 10
25: 1 0 1
26: 1 1 1
27: 0 2 13
28: 1 2 2
29: 1 1 1
30: 1 2 9
31: 1 3 8
