1111X221X1X21X11
1111X221X11X1211
1111X221X1112X11
1111X2211XX21X11
1111X2211X1X1211
1111X2211X112X11
21XX1221X1X21X11
21XX1221X11X1211
21XX1221X1112X11
21XX12211XX21X11
21XX12211X1X1211
21XX12211X112X11
2121X221X1X21X11
2121X221X11X1211
2121X221X1112X11
2121X2211XX21X11
2121X2211X1X1211
2121X2211X112X11
