X111XX11121XX121
X111XXX112122121
X111221112122121
X11122X1121XX121
X1X1X2111212X121
X1X1X2X1121X2121
X1X12X11121X2121
X1X12XX11212X121
2111X211121X2121
2111X2X11212X121
21112X111212X121
21112XX1121X2121
21X1XX1112122121
21X1XXX1121XX121
21X12211121XX121
21X122X112122121
