21XX11111X12X1M0
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21XX11112X12X1M0
21XX11112X1211M0
21XX11121X12X1M0
21XX11121X1211M0
21X111111X12X1M0
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21X111111X1221M0
21X111112X12X1M0
21X111112X1211M0
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21X111121X12X1M0
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21X111121X1221M0
21X111122X12X1M0
21X111122X1211M0
