9 16
1 10 100 1000 10000 100000 1000000 10000000 100000000
0 1
1 2
1 3
3 4
3 5
0 6
6 7
6 8
0 0 1 3 1
1 0
1 1
1 7
1 4
0 3 0 9 10
1 2
1 3
0 6 1 2 100
1 6
1 7
1 0
1 1
0 2 5 9 100
1 5
1 8