input:

1658
9 20
6 4
5 8
1 7
2 3
3 8
3 1
4 8
5 3
7 6
1 6
4 9
4 1
9 3
2 5
4 5
8 9
1 8
4 2
5 7
3 6
14 78
13 12
10 8
2 10
6 13
2 14
13 1
14 10
9 6
2 13
8 3
9 8
5 6
14 12
8 1
9 14
9 5
12 6
5 10
3 12
10 4
8 5
9 10
6 8
1 6
12 4
3 13
1 5
10 3
13 9
10 13
2 5
4 7
7 1
7 6
9 3
2 12
1 10
9 1
1 14
3 1
3 4
11 1
11 6
7 1...

output:

-1
2 11 22
-1
-1
4 13 43
27 30 37
11 21 50
5 6 13
-1
-1
2 5 8
1 2 4
1 3 4
1 2 3
1 2 3
-1
29 35 43
13 21 33
1 2 3 4
-1
1 3 6
-1
1 3 4 8
-1
-1
19 28 39 43
-1
2 3 4
-1
-1
9 35 39
-1
43 51 57
-1
-1
1 3 6
2 3 12
2 23 39
2 9 11
-1
1 7 16
2 3 5
-1
12 16 24
10 15 16
2 16 18
-1
1 4 8
-1
-1
13 15 30
-1
14 21 ...

result:

wrong answer 1st lines differ - expected: '2 5 8', found: '-1'