1X1X221X11221XM2
2X1122X1121XX122
11X21X1X22XX1XM2
2XX2112121X1X122
XX1112122X1X1X22
X1X2X211211121M2
11XX2221XX121X22
1112XX11122X11M2
121212112XXX1122
11XXX2X1X1111XM2
X1X22X122X12X122
XX11X21X221X2XM2
1X1211112X1X1X22
X1X2X21111X111M2
12X2211X2X121122
X11XX2XX221X1XM2
