2X1X11212XX1211M
2X1211212XX1XX1M
211X12X12XX1XX12
2X1X12X12X212X22
2X1212X12X21X11M
2XXX11212221XX2M
2XX212X122X12X1M
212X1X1121X12X02
2X2X1X1121X1X11M
