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9
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3
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9
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4
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6
3
x  1
7
2
x  1
8
7
x  1
9
0
x  1
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0
x  3
11
0
x  6
12
8
x  1
13
8
x  0
14
7
x  0
15
1
x  1
16
1
x  5
17
4
x  0
18
0
x  5

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