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

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