X11211122X221111
X1121XX1112X1111
X112X1X2112X1111
X112XX112X221111
XX1211X12X221111
XX121X12112X1111
XX12X111112X1111
XX12XXX22X221111
21121111112X1111
21121XX22X221111
2112X1X12X221111
2112XX12112X1111
2X1211X2112X1111
2X121X112X221111
2X12X1122X221111
2X12XXX1112X1111
