111X2111XX12X1MM
X11XX221X21121MM
X1112XXX2X1121MM
2111X1X1221XX1MM
2111222XX11XX1MM
211XXX1X211221MM
X11XXXXX1X1XX1MM
111X222X221X21MM
1111X11XX211X1MM
X111XX212X12X1MM
211X2XX1XX1X21MM
X11X21X12111X1MM
211X221X1212X1MM
2111X2XXXX1221MM
