9X1=7X6=
8X2=6X7=
7X3=5X8=
6X4=4X9=
5X5=3X1=
4X6=2X2=
3X7=1X7=
2X8=1X6=
1X9=2X5=
9X2=3X4=
8X1=4X3=
7X2=5X2=
6X3=6X1=
5X4=7X4=
4X5=8X5=
3X6=9X6=
2X7=1X7=
1X8=2X6=
9X3=3X5=
8X4=4X4=
7X5=5X3=
6X6=6X2=
5X7=7X1=
4X8=8X3=
3X9=9X5=
2X1=1X4=
1X2=2X3=
9X4=3X2=
8X5=4X1=
