X121X2111X11X122
222X2211X2X1X122
2221X2111X122X22
X12X2211X2X22X22
X12X22111X12X122
2221X211X2X2X122
212XX2111X112X22
X2212211X2X12X22
X22XX2111X11X122
212122111X11X122
2121X211X2X2X122
X22XX211X2X1X122
222122111X12X122
X12X2211XX12X122
2221X21112112122
X221X2111XX22X22
