2X1XX221122121M2
2211112XX22121M2
211122X1X22X2XM2
2X11212122X112M2
2211XX21X22112M2
211X1XX1222112M2
22111221X211X2M2
22112XX112X122M2
121XX1X122X122M2
XX1111X1222122M2
X211122112XX22M2
X111XX21222X22M2
