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2X1112X21211X121
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1111X211X211X121
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21211X21X211X121
21X11112X211X121
2111X221121XX121
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2XX1111212112121
1X2112X212112121
2X111X11X2112121
1X21211XX2112121
1X112X12X2112121
1XX111X2X2112121
2111X122X2112121
1X112X11121X2121
2X1121X1121X2121
2X211X2X121X2121
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2111X11XX21X2121
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