X1X211112X112121
XXX21XX1XX112121
XX221111XX1X2121
21X21XX121112121
21221X11X11X2121
2X2211X1211X2121
X122X1X1X1112121
X122XXX12X1X2121
XXX2XX11211X2121
21X2X1X1XX1X2121
2XX2X111X1112121
2X22XX112X112121
X1X221X1X11X2121
X1X22X11XX112121
XXX221X12X112121
XX222X1121112121
21222111211X2121
212221X1XX112121
2XX22X112X1X2121
2X222XX1X11X2121
