XX221111XX212102
12XX111X2X1X1211
2X221X2XXX211X12
X1221122X21X11M1
21222XXX21211202
21X21XX2X211X212
1XX21111XX1XX211
1121121121211X11
X222X1XX1XX11101
XX22211211X21211
1222X2212X1X1210
XXX2112XX221X220
