21121X1X212X1112
21121X122122X112
2112X21X2122X112
2112X212212X1112
21X2121X21221112
21X21212212XX112
21X2XX1X212XX112
21X2XX1221221112
2X12121X212XX112
2X12121221221112
2X12XX1X21221112
2X12XX12212XX112
2XX21X1X2122X112
2XX21X12212X1112
2XX2X21X212X1112
2XX2X2122122X112
