1X1211112111XX21
1X12111X2X11X221
X22211212111XX21
X222112X2X11X221
X212111X2111XX21
X21211112X11X221
1X22112X2111XX21
1X2211212X11X221
XX2211112X11XX21
XX22111X2111X221
121211212X11XX21
1212112X2111X221
XX1211212111X221
XX12112X2X11XX21
122211112111X221
1222111X2X11XX21
