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

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