X1X21111X1111121
2122X221XX111121
212212111112X121
21X1X121X112X121
X12XX111XX12X121
2X22X11121121121
XX22X1211111X121
X221X211X111X121
222X1121X111X121
21XXX2112111X121
22X2X1111X11X121
212111112X11X121
2X21X11111111121
2XX21211X111X121
X222X1212111X121
22221111X1121121
21XXX11111111121
2X2XX121XX11X121
XX221111XX11X121
