X211112211211221
XXX111X211111X21
22X1111211111X21
X211111221X11121
1X21111211211121
121111X211X11221
1XX1111221211221
1X11111X11111221
X2X11122X1211121
X22111XX11111121
1X111112X1211X21
22211112X1111221
2X1111X221111121
X2X111XX21111221
222111X221211X21
12X1112X11211X21
X21111XXX1111X21
2211111X21211121
1221112221111X21
12X111X2X1X11121
1XX1111XX1111121
1221111X21X11X21
1X1111XX21211121
1221112XX1211221
