1X111211221XXX11
12X1X1112X1X1111
1X1111112XXX1111
12X1X21122XXXX11
1X111211222XXX11
12X1X211222XXX11
122111112X11121M
12X111112X21121M
12X1211X2X11121M
1221211X2X21121M
1211111X2XX1121M
12112X1122X1121M
12112X112XXX121M
1211211122XX121M
