frontier_cs/problems/154/testdata/21.in

12
3 26 2
13 10 5
20 17 1
15 8 3
5 15 5
20 26 4
7 19 5
6 27 3
11 21 4
21 25 4
6 20 2
7 1 2
8
8 26
26 10
19 23
12 5
21 7
7 9
25 25
28 21
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