121111111221111M
X21111111221111M
121X11111221111M
X21X11111221111M
121111X11221111M
X21111X11221111M
121X11X11221111M
X21X11X11221111M
1211111112211X1M
X211111112211X1M
121X111112211X1M
X21X111112211X1M
121111X112211X1M
X21111X112211X1M
121X11X112211X1M
X21X11X112211X1M
221X11221X1X1X1M
22221111X1211111
