X1X1111X2X1X11M1
X121X11XX11111M1
X121XXX12X1X11M1
XXX1XXX1X11111M1
XX211XX1X11111M1
XX21X11X2X1X11M1
21X11XX1X11111M1
21X1X11X2X1X11M1
2121111X2X1X11M1
2XX111X1X11111M1
2XX11X1X2X1X11M1
2X21XXX1X11111M1
211X1X122X121120
X121XXXX1111X220
X121X1212X12XXM0
1211122112XX11M0
21111X21122X1XM0
