frontier_cs/problems/154/testdata/15.in

12
1 12 4
4 6 4
24 7 4
1 1 4
16 2 3
20 14 2
17 21 2
1 20 5
21 30 2
30 21 1
28 24 2
11 20 5
10
12 7
21 13
18 25
3 13
18 12
13 26
14 30
14 12
11 16
15 14
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