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Archery

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English

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2000 ms
Memory limit
64 MB
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Statement

Archery: original English statement, page 1

Archery: original English statement, page 2

Examples

Sample input 1
4 8
7
4
2
6
5
8
1
3
Sample output 1
3
Sample input 2
4 9
2
1
5
8
3
4
7
6
Sample output 2
2

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