input:

4
5 2 3 16
7 11 2 9 14
13 5
3 2 4 11
6 10 2
1 11
2 1 2 6
1 5
3
2 1 2 6
1 5
2

output:

4
2 7 10 13 
-1
2
1 4 
-1

result:

wrong answer There is at least one stripe covering black cell 13 (test case 1)