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X2XX211X111112M1
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X21X112X111112M1
X21X111XX11X12M1
1XXX212X111112M1
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121X211XX11112M1
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111211X11X121221
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1X1211X111121221
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1X1211X21X121X21
1X22X1X1221X21M1
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2X22X1X1221X21M1
22X221X1212X12M1
