easy Set 20 Table Grid
4=1=16=8=2-31-1-7
1=15=2=12+7=
5=8=3=4=61-2=2
7=75=4+28=1=1
1-1-11-28+4-1-
1-46=67=75+8=8
2-287=73=6+5=
6+1-5=1-3-6
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41685327
15248736
58314672
76532481
37126854
23467518
62873145
84751263