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111X111111XX2121
2X1X2111X1111121
2X1X2111X1XX2121
2X1X111111X11121
2X1X1111111X2121
111X2111X1X11121
111X2111X11X2121
211X2111111X1121
211X211111X12121
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1X1X1111X1X12121
211X1111X1112121
211X1111X1XX1121
1X1X211111112121
1X1X211111XX1121
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