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1X12112222111121
1X12211122211121
1XX1112122211121
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X111111122111121
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X112112222111121
X112211122211121
X1X1112122211121
X1X1211222111121
X1X2111222211121
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21X1111222211121
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2X11111122111121
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2X11211222211121
2X12212122111121
2XX1212122111121
2XX2111122211121
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2XX2212222211121
