211121X1X2XX1X21
2211X1X111212121
22111111X11X2121
22111111XX21X221
12111121X1XX2X21
2X11X1111X22X221
2X11X11122X11X21
121111X12X1XX121
2211111111XX2XM1
X11121X12121X2M1
121121X1XX12X1M1
2X11X12111XX2XM1
X21111X1XX2121M1
1X11X1112122X2M1
221111X11X1X21M1
X1112111X12X22M1
