1X1121X122111X11
1X11212122211211
1XX12XX122211211
1XX12X2122111X11
12112XX122211X11
12112X2122111211
12X121X122111211
12X1212122211X11
XX112XX122111211
XX112X2122211X11
XXX121X122211X11
XXX1212122111211
X21121X122211211
X211212122111X11
X2X12XX122111X11
X2X12X2122211211
