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