3
9
1
6
7
2
2
8
9
3
6
3
8
9
1
4
8
6
3
1
7
9
1
9
7
3
4
6
6
7
3
1
4
9
5
8
2
3
2
6
1
1
3
8
4
6
2
3
7
Grid.......n 36
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