111X112XX2111121
111X1122X2X1X121
1112112XX1X11121
11121122X111X121
121X11XXX111X121
121X11X2X1X11121
121211XXX2X1X121
121211X2X2111121
X11X112221111121
X112112X2211X121
X21X11XX22X11121
X21211X221X1X121
2X1X111X11X1X121
2X1X11121211X121
2X12111X11111121
2X12111212X11121
