111X2XX2XX12X1MM
X11X1XX2211221MM
11121XX2XXXX21MM
X1112XX221XXX1MM
1X1XXXX2211XX1MM
XX122XX22X1X21MM
XX12XXX2XXX2X1MM
1X112XX2X1X221MM
X21XXXX2X1XX21MM
12121XX221X2X1MM
X2111XX2XX1XX1MM
1211XXX22X1221MM
