1111X111XX2X1221
1111X2XX21111121
111121XXX12X1121
111122112X111221
1X11X1X12X1X1121
1X11X21XX1211221
1X11211X211X1221
1X1122X1XX211121
X111X11X2X211121
X111X2X1X11X1221
X11121X121211221
X111221XXX1X1121
XX11X1XXXX111221
XX11X211212X1121
XX112111X1111121
XX1122XX2X2X1221
