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Sample has a problem?

Posted by yogafrank at 2008-10-05 13:26:28 on Problem 3705 
Sample Output 1
2
1 1 2
1 1 1

The limitations are:1 ≤ pos1 ≤ n, 1 ≤ length ≤ n+1-pos1, 0 ≤ pos2 ≤ n-length

but in the first case, pos2(with the value 2) is invalid?
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