11X121X2111X1211
X1X121X2111X1211
112121X2111X1211
X12121X2111X1211
11X121X2112X1211
X1X121X2112X1211
112121X2112X1211
X12121X2112X1211
11X121X2111XX211
X1X121X2111XX211
112121X2111XX211
X12121X2111XX211
11X121X2112XX211
X1X121X2112XX211
112121X2112XX211
X12121X2112XX211
