1X121X1222211121
X2121XX1221XX1M1
21111X11X11112M1
221211XX1XX22111
1X11111211X1XX10
22111X1XXX1XX1M1
22112X211211XX21
121X11XX1X2121M1
111211XX2X11X1MM
2X1211X2111X2X21
