1X11111221X11221
1X1X11XX11111121
1XX111X211111121
1XXX111X21X11221
121111XX21X11221
121X111211111121
12X1111X11111121
12XX11X221X11221
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XX1X11X221X11221
XXX111XX21X11221
XXXX111211111121
X21111X211111121
X21X111X21X11221
X2X1111221X11221
X2XX11XX11111121
