11212111X1XX1X12
11212111X1X2X212
1121211X21XXX212
1121211X21X21X12
112121X121XXXX12
112121X121X21212
112121XXX1XX1212
112121XXX1X2XX12
112X211121XX1212
112X211121X2XX12
112X211XX1XXXX12
112X211XX1X21212
112X21X1X1XXX212
112X21X1X1X21X12
112X21XX21XX1X12
112X21XX21X2X212
