Learn a Fact: 1 x 5

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

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