contests/Round828/Round#828/B/main_input0.txt


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

4
1 1
1
1 1
3 3
1 2 4
0 2
1 3
0 5
6 7
1 3 2 4 10 48
1 6
0 5
0 4
0 5
1 3
0 12
0 1
6 7
1000000000 1000000000 1000000000 11 15 17
0 17
1 10000
1 51
0 92
0 53
1 16
0 1