hard Set 20 Table Grid
168x632x3=20+2/2
1=18+5/9=9
6-6=18+
6=50x7=8=12+4x
6=67=8+19+
3=22+36x19+5=
14x54x4=6x
48x15x11+18x360x
12+9=1=7=
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935412867
659783241
523678194
382941756
218567439
871394625
496125378