frontier_cs/problems/154/testdata/28.in

17
4 9 4
24 18 2
27 28 2
24 7 5
4 27 4
18 25 4
8 23 5
2 25 3
21 13 4
18 15 5
27 15 2
7 25 3
23 1 3
13 25 4
23 6 4
8 10 5
8 28 1
9
29 20
7 4
13 19
22 2
28 13
29 13
2 9
15 7
17 3
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