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2X1X2X111XX12211
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X11X2X111X21X211
2X21XX1111X12211
X1211X111121X211
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2X11XX111121X211
XX1X22111XX1X211
X12X1X1111X12211
1X12XX111XX1X211
2X1XX1111X212211
XX11X21111X12211
XXX12X111121X211
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211121111XX1X211
21X11X1111X1X211
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