111111111X121121
2121X111XX121X21
21212X1112X21221
X1X11X11X2X21121
21212X111XX21221
X1X1211122121221
2X21111122X21221
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2X2111112XX21221
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2X212X1122121121
X1X111X112X21X21
212121X122X21121
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2X212X112X121121
2X2121X112121221
1111XX112XX21X21
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212121X12XX21121
1X112111XXX21X21
21211XX12X121221
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2X2121X11X121221
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2X21XXX1X2X21X21
2X21XXX1XXX21X21
XXX12XX122X21221
1X11X1X12X121X21
1X111XX11XX21121
