1X121111X1XX1111
1XX211112X1X1111
1XX2111XX11XX111
121211112XX11111
1212111X2111X111
12X2111XXXX1X111
1X1211XXXX111111
1X1211XX2XXXX111
1XX211X121X1X111
121211X1XX1XX111
12X211X1X1111111
12X211XX21XX1111
1X121121XX11X111
1X121121211X1111
1XX21121XXXX1111
1XX2112X21X11111
1212112XX1X1X111
1212112XXX1X1111
12X2112121XXX111
12X2112X2X11X111
