112XX111111X121M
112XX111XX1X121M
112211111X1X121M
1X2X11111X1X121M
1X221111X11X121M
1X22X1111X1X121M
212X1111X11X121M
212XX1111X1X121M
2122X111X11X121M
2X2XX111X11X121M
2X221111111X121M
2X221111XX1X121M
