1X2111X212111X11
X1211X12121XXX11
1X211X12211X1X11
X12111X22111XX11
1X21XX12X211XX11
X121X1X2X21X1X11
1121X1122X1XXX11
XX21XXX22X111X11
1X212XX21X1XXX11
X12121121X111X11
11212XX2X1111X11
XX212112X11XXX11
