XX11212122X1X11M
122X11222111221M
X21211X12111X21M
11XXX1211111111M
XX11112X1212111M
X1X21121221XX21M
X111212X1111X11M
1X122X21X212211M
122112X22111211M
221212212212X11M
1111222222111X1M
