easy Set 21 Table Grid
4=3=7=1=5=54-8=
7=76-85=6=63=1=
1=14=45=2=3-12+87=7
2=24+32-8=
82-1=7=2=5=510+39+
3=5=12+47=718+6
2-3-68=5+3+
8+64-1=12+3=
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43715268
78256341
14523687
21364875
86172534
35847126
57638412
62481753