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1X1XX122XX122XM1
1X1X2122X2122XM1
1X121122221X2XM1
1X222122XX1XX1M1
11112122X112X1M1
11221122211121M1
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2X1XX122XX11XXM1
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211X1122X21XX1M1
2111X12221112XM1
21121122X21121M1
211221222X1221M1
