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111XX111XX1XXX21
111X211X2121X221
1111X112XX22X121
1112X1121111X221
1112X11111XX1121
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111XX1122XX11121
11121112XX2X1221
111X111XX2X1XX21
111XX11X112X2X21
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111X211X1111X121
1112211222X22221
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1112211X122XXX21
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111X111X1XX2X221
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