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21X2221X121X1X12
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21X21111XX111121
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21221111XX111121
X1X21X11XX111121
21X21X11XX111121
X1221X11XX111121
21221X11XX111121
X1X211112X111121
21X211112X111121
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212211112X111121
X1X21X112X111121
21X21X112X111121
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21221X112X111121
X1X21111X2111121
21X21111X2111121
X1221111X2111121
21221111X2111121
X1X21X11X2111121
21X21X11X2111121
X1221X11X2111121
21221X11X2111121
X1X2111122111121
21X2111122111121
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2122111122111121
X1X21X1122111121
21X21X1122111121
X1221X1122111121
21221X1122111121
