X1211121X2XX1121
1X121121XX111110
21X2X1112XX11121
X211X1X1121X1110
11XX111112XX1121
2121X1X12X111110
1X1XX1211XX11121
2X221111X21X1110
21X111X12XXX1121
12X21111121X1121
2X1X2111X2111110
111XX1211XX21110
1X22111112X11121
X11X2121XX1X1121
