1X1X1X12X21111M2
1112111122X1X2M2
111X11122211X1M2
1X1X111212X111M2
1X1X1X1112X111M2
11X21X12121112M2
111211111211X1M2
1XXX1111X21112M2
11121111221112M2
11X21112X2X111M2
11121X12121112M2
1XX21X12X2X1X1M2
