21X11XX2XX11X2M0
XXX111X21XX1X2M1
21X11XX2X21X1XM1
XXX111X212XX1XM1
21X11XX2X11221M1
XXX111X211X221M1
2121XX1XXX11X2M1
XX21X11X1XX1X2M1
2121XX1XX21X1XM1
XX21X11X12XX1XM1
2121XX1XX11221M1
XX21X11X11X221M1
21112X21XX11X2M1
XX1121211XX1X2M1
21112X21X21X1XM1
XX11212112XX1XM1
21112X21X11221M1
XX11212111X221M1
