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1X11XX11X121X211
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1111X21X1121X211
1X11X21X1121X211
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111XX21111X1X211
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X111XX1X11X1X211
XX11XX1X11X1X211
X211XX1X11X1X211
X111XX1XX1211211
XX11XX1XX1211211
X211XX1XX1211211
X111X21111211211
XX11X21111211211
X211X21111211211
X111X211X1X1X211
XX11X211X1X1X211
X211X211X1X1X211
X11XXX111121X211
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X21XXX111121X211
X11XXX11X1X11211
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X21XXX11X1X11211
X11XX21X11X11211
XX1XX21X11X11211
X21XX21X11X11211
X11XX21XX121X211
XX1XX21XX121X211
X21XX21XX121X211
