15x23=
615
10x10=
100
7x10=
70
10x35=
3500
23x10=
230
7x8=
56
1x300=
300
90x90=
8100
0x39=
0
5x6=
30
1x200
200
00x40=
000
87x61=
5307
7x4=
28
50x1
50
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