12111X1X1212XX21
12111X111XX21221
12X111121XX22X21
12211X11X2X11X21
12221X121211X221
12XX1X12X1X12221
1212121111X21X21
122112112111XX21
12X111XX12X1X221
1212111212X2X221
X2111X12X1121X21
12X1121112X11221
12X211112212X221
22111X111X111X21
12121X121X122221
121112121112X221
