21X21X211XX11211
21121X211X12X111
21X21X211X212211
21X11X211XX12111
X112122111X1X111
21X2X2211XX1X111
21121X211XX1XX11
21X1XX211X212X11
X111XX21X12X2X11
21X2X2211X211211
X112XX21111X2211
21121X211XX21111
X1121X2111XX2111
X1111X21X1XX2111
221X1112XX122111
1221XX2111X12211
