X11X111XXX11X222
X11X211X1122XX22
X111X11XX1121222
X21X111XXX221X22
X211211X1X211222
X212X11XX121XX22
X212X11X1X12X222
111X211X1X121222
1111X11X1X11XX22
1112X11XXX211222
1112111XX112XX22
121X111X1121X222
121X211XX1111X22
1211X11X11221X22
2111111XX1211X22
2111111X1X22X222
2112211X1111X222
2211211XXX12XX22
2212111X1X111X22
2212211XX1221222
