X1121X221XX11111
X1122X1X11X11X11
1212XX2X22121111
211XX12221XXX211
211X212X1XX21X11
211211X221XX1X11
XX12211121XX1120
X21211221XX2X220
1212111X21121X20
2212211XX2X11X20
X11X12X111X21221
X11X12221X1XX221
1X1X2122X1X21221
1X12X1121XX21221
