Learn a Fact: 1 x 7

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

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