21X212211X2211M1
2X2XX2211X2211M1
2XXX2221112211M1
21222221111X11M1
212XX221X1XXX2M1
212XX221X1121XM1
2121X221X2X21XM1
21211221X122XXM1
2121122121121XM1
22211221212112M1
X121122121X212M1
212112X1212212M1
