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Learn a Fact: 1 x 2

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

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