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1X121121121X121M
X212X12112XX121M
1212112212XX121M
1X121121111X221M
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XX121122111X121M
1212112211XX221M
X212112211X1121M
XX1211221111121M
XX12X1211211121M
XX12X1211111221M
12121121121X121M
12121121111X221M
