2111XX221X111222
112X2121X2X11XM1
X1X12X21X2121X21
X1211X212XX11X21
X2X12121XX1112M0
21X1X2X112X111M0
2121XX21112X1120
X112112XX1211121
1111221122X1XX20
1XX1X2211X112220
