hard Set 15 Table Grid
8=2-24+450x1=
9=21x36x
9+32x3/20x
2=3=5=6=63x8=
4/4=9=3=7=13+
35x56=320x2=354x
5=18+6=6
16+2=4=108x26+
540x7=715x4=
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368497215
235169874
149358726
457682139
581923467
716245983
692571348