211X211211X111M2
211X2112112XX1M2
211X21X2X1XXX1M2
211X21X2X12111M2
211X2X12X1XX11M2
211X2X12X121X1M2
211X2XX211X1X1M2
211X2XX2112X11M2
21XX2112X1X1X1M2
21XX2112X12X11M2
21XX21X211XX11M2
21XX21X21121X1M2
21XX2X1211XXX1M2
21XX2X12112111M2
21XX2XX2X1X111M2
21XX2XX2X12XX1M2
