2X122XXX111X1121
X211X11X1211X121
X11X1X121X12X121
1X1XX2X11212X121
X11X21X112121X21
X2112X21111XXX21
1112122X121XXX21
1X1XX12211112X21
XX12221X1X112X21
XX11X21111121221
121X2XX11X112221
2111X1XX1X1X2221
