A
5
7
4
8
3
0
1
9
B
6
0
5
4
9
7
2
C
0
4
9
7
3
5
1
8
D
9
3
6
0
4
8
E
9
1
4
5
7
0
2
3
F
3
0
9
1
8
7
6
G
6
2
0
5
1
9
4
H
7
0
9
2
3
5
I
2
6
0
9
J
2
7
8
3
A
B
C
D
E
F
G
H
I
J
Click on a white box to add a number.
You can only change the numbers you place on the board
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