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22X11X221121X21M
XX111122X1X1X21M
221X1122X12X121M
12211X222111121M
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12X11122112XX21M
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1X111X222121121M
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22211X22X111X21M
1221122211X1121M
2X111122X1XX121M
121X1122111XX21M
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222X1X221111121M
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12XX1122X1X1121M
22X11X221121121M
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12111122111X121M
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