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8
x  1
2
6
x  0
3
9
x  0
4
0
x  4
5
0
x  1
6
4
x  1
7
8
x  0
8
5
x  0
9
5
x  1
10
6
x  1
11
1
x  3
12
2
x  0
13
1
x  9
14
7
x  0
15
7
x  1
16
0
x  3
17
1
x  1
18
2
x  1

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