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1112X1XX21211122
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112211XX22111122
1122112X11112122
1122X12122112122
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X112112X22212122
X112X1XX12112122
X12211X121212122
X122X1X111111122
X122X12X12211122
211211X121112122
211211XX11211122
2112X1X122211122
2112X12X12111122
2122112112112122
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2122X1XX12212122
2122X12X21112122
