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10
4 
8

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4, 523
10, 999
8, 0

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Number,20090101,20090102          ,20090103
10    ,999     ,"file 2's numbers","file 3's numbers"
4     ,523     ,"file 2's numbers","file 3's numbers"
8     ,0       ,"file 2's numbers","file 3's numbers"

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