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111X11222X21X111
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11X1112X1111X111
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11X1111X2X21XX11
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11XX11121X111X11
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X11X212X2X111X11
1111211X2111XX11
11XX21221X11XX11
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11XX212X212X1111
11X1211221111111
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X11X212X212XX111
1111211X2X1XX111
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11X111221X211111
11X1X1XXXX222211
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11X121222X122211
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21X1X1X22X111111
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21X121XXXX222211
22X1X1XX2X111111
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