21X21121X21X11M1
21X2112X1211X1M1
21221121X211X1M1
2122112X121X11M1
2XX21121121XX1M1
2XX21121X211X1M1
2XX2112X121X11M1
2XX2112XX21111M1
2X221121121111M1
2X221121X21X11M1
2X22112X1211X1M1
2X22112XX21XX1M1
22X21121121111M1
22X2112XX21XX1M1
22221121121XX1M1
2222112XX21111M1
