212XX121X1121112
212XX11X1X1X1X12
2X2XX11X1X1X1X12
2X2XX112121X1212
2X2XX122X2121212
212221111X121X12
21222X1211111112
212221XX11111112
21222XXX1X121X12
21222X2111111112
212221221X121X12
2122X11111121X12
2122X1X21X1X1212
2122X1211X1X1112
2122X12211121112
212X11111X111121
2X2X112XXX1X1X21
2X2X1122XX121221
