XX21222112211211
2XX2X22112211111
121XX2X1222X1111
1X22X2X112211X11
122XX22112211X11
11XXX2X122211X11
11XXX2X112221X11
2X12X2X112221X11
221X22X112221X11
1212X2X1X2221X11
221XX2211221XX11
1212X2X112212X11
1X211221X2211211
1X112221X2XX1211
1X212211122X1211
1XX11211X22X1211
