4x3=
12
5x4=
20
6x3=
18
7x3=
21
9x3=
27
4x4=
16
5x5=
25
6x6=
36
7x6=
42
9x5=
45
4x6=
24
5x6=
30
6x7=
7x7=
49
9x6=
54
4x7=
28
5x7=
35
6x8=
48
7x8=
56
9x8=
72
4x8=
32
5x8=
40
6x9=
7x9=
63
9x9=
81
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