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Everytime that i read the problem i get more confused, can somebody explain it to me?

Thanks

I am reading the M.A.S.H problem and i cannot understand the first example, when they said we have 10 people. 2 of them will be lucky and cards 3, 5, 4, 3, 2

these is the line: 1 2 3 4 5 6 7 8 9 10

1rst card:
1 2 X 4 5 6 7 8 9 10
2n card:
1 2 X 4 5 X 7 8 9 10
3d card:
1 2 X 4 X X 7 8 9 10
4th card ...

Yeah you are getting wrong answer because you have to cast in the div, is not the same (n/3) * (m/3) than ( (int) (n/3)) * ( (int) (m/3))

Good work