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Prehistoric Programs

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Time limit
6000 ms
Memory limit
2048 MB (no extra memory)
Submissions
0
Correct
0
Solved by
0
AC rate
—

Statement

Prehistoric Programs, page 1

Prehistoric Programs, page 2

Examples

Sample input 1
2
())())()
((()
Sample output 1
2
1
Sample input 2
5
(
))
((
))
(
Sample output 2
1
5
3
2
4
Sample input 3
2
((
)
Sample output 3
impossible

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