medium Set 57 Table Grid
20+3=39=6+6x
2-13+8=2=3=
7+11+715+45x15
318+2=5=54=7=12+10+
1=7=8=5=42=
7=79=2-8=2-3
9=120x8=27x212x7=7
8+1=4=10+23+
16+2=9=1=15+34=
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