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2X122111XX1X2210
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2X1X1211XX1X2210
2X1X1111221X2210
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211211112X1X2210
21121211X21X2210
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XX1X2211X21X2210
211X2111X21X2210
211X22112X1X2210
XX121111X21X2210
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112X121122211XM2
112X121X22211XM2
