111X11121X212212
111211X11XX11212
11XX11X112212212
11XX11X21XX11112
2112111112211212
211211121XX12112
21XX111212211112
21X211X112X12112
11121XX2X2211112
11X21X11XX212112
211X1XX2X2X12212
21XX1X11XXX11212
111X1X1122X11112
11X21X1222X12212
211X1XX12X212112
21X21XX22X211212
111X1211X2X12112
11X21212X2X11212
211X12X1XX211112
21X212X2XX212212
111212X222212112
11X212112X211112
211X12X222X11212
21XX12112XX12212
