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X1122XX11XX2X211
11211221211X1X11
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21111X1XX211X211
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11X1112X11XXX211
21X22111121X1211
2111XX1XX1121X11
11X21X21112XXX11
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X1XXX21111221111
11111XX21121X111
211111XX21212111
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X111XX22X1X11111
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21X11X111112XX11
21X11X2121XX2X11
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212X122111XXX211
211X2X11X1XXX211
21X2XXX112X11X11
2111211XX2222X11
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21X2112X112X1111
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