XX1112X212121111
1XX1221X1X11X111
1X212X12X211X111
X2X11112121XX111
2X1121X112XXX111
X111X21X12X2X111
X21121XX1X112111
11X112X21XX12111
2211XX1X1X1X2111
11111XXXX21X2111
1XX1X1X212122111
X1X12X1X12122X11
