1X11212112211212
1X1X2111XX211212
1X2X1121XX211112
1X2X2111X2111112
X11X21211X111212
X12X1111XX211112
X12X212112211112
XX1X1121X2211112
XX212121XX211112
XX2X11211X211212
XX2X211112111212
21111121XX211212
212X1111XX111212
212X2121X2211212
2X1X1121X2111212
2X1X21111X211112
2X211111X2211212
2X212121XX111212
