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11122122X1211112
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1X1221X211111112
1X122122X1121X12
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X11211X211111112
XX11112211111X12
XX1211X2X1221112
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XX11X1X211121X12
XX11X122X1111112
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211111X211211112
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2X1111X211121X12
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2111X122X1221X12
2112X12211111X12
2X11X1X211111112
2X12X1X2X1221112
