X11111X12X121X1M
112111111X121X1M
X12111111X121X1M
1121111122121X1M
X121111122121X1M
111111X112121X1M
X11111112X221X1M
112111X12X221X1M
1111111112221X1M
112211112X111X1M
112211112X12XX1M
112111112X11XX1M
112211112X12121M
112111112X11121M
112111112X12X21M
