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X12X21X1X1121112
112121XXX1121X12
X1211111111X1112
112111XX12121212
112121X1X2121212
11212112111X1X12
X12121111X121112
X12XX11212111212
1121X1122X121112
1121211X12121X12
212X2112211X1112
2122211XXX111112
212X21X221121112
21221121X21X1212
X121212222111X12
1122X1122X121212
2122X12X12111212
112X212X12121212
212121122X121X12
