21XX21XXX2X11212
21XX211X12X11212
21X12X1X22211212
21X12X1212211212
21X12X2X22X11212
21X121XXX2X11212
21X121XX22X11212
21X121X1XXX11212
21X121X1X2X11212
21X121112X211212
21X1212X1XX11212
21X1212X2X211212
21X1212122X11212
211X2122X2X11212
21112XX112211212
21112X21X2111212
211121XX1XX11212
21112111XX211212
211121111X211212
2111211122X11212
2111212XXX211212
2111212X12X11212
2111212X12211212
2111212X2X111212
21112121XXX11212
2111212112X11212
212X2111X2211212
21212XX11X111212
212121XXX2211212
212121XX1XX11212
212121X12X211212
212121X122211212
212121X2XX211212
21212111X2111212
2121212X1XX11212
2121212X1X211212
2121212122211212
