211112X11211X111
212112X12211X111
21111X2112112111
21211X2122112112
2121X2111211X112
2111XXXX22112112
2121XXX212112121
2111X22X2211X121
2121X2221211X121
21212X1X1211X122
2121221X12112122
21112X122211X122
2111221222112111
