XX121111X21121M1
2112111X12X12XM1
XX12112X12X111M1
21121121X2111XM1
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21X211X1X2X121M1
X1X2112112X1XXM1
2XX2112XX211X1M1
XX22111XX2X1XXM1
212211111211X1M1
X12211XXX21111M1
2X2211X112X11XM1
