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Hello
I am working on 103 (Stacking Boxes) and am getting Wrong Answers.

I try the test cases and for this input:

8 6
5 2 20 1 30 10
23 15 7 9 11 3
40 50 34 24 14 4
9 10 11 12 13 14
31 4 18 8 27 17
44 32 13 19 41 19
1 2 3 4 5 6
80 37 47 18 21 9

My output is this:
4
7 2 5 8

however the problem ...