X11X11XXX122X221
X11211221122X221
X1121XXX11222221
211X1122X12XX221
211X1X2X112X2221
21121XX2X12X2221
X1XX1XX2112XX221
X1XX1X22X1222221
X1X2112XX12X2221
21XX11X211222221
21X211XX112XX221
21X21X2XX122X221
X12X11X2112X2221
X12X112X1122X221
X12211X2X122X221
X1221X2XX12XX221
212X1XXXX12X2221
212X1XX21122X221
2122112XX1222221
21221X22112X2221
