2121X2111212X1MM
2221XX2X1212X1MM
212122X1121221MM
21212XXX121XX1MM
2211221X121221MM
22212X1X1211X1MM
22112X1X1212X1MM
2X212211121XX1MM
222122X11211X1MM
221122X11211X1MM
2X21XX211211X1MM
2X11X21X121X21MM
2X21X2X1121121MM
2X2122X1121X21MM
21112221121X21MM
