Questions on 'pdf file' tag
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640
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1
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959
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0
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1
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634
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0
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545
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0
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1
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533
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0
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1
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525
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0
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1
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646
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0
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1
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547
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0
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1
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476
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0
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1
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523
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0
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1
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443
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0
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1
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572
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0
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1
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462
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0
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1
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442
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1
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1
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588
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0
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1
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565
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0
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1
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467
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1
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1
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499
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0
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1
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553
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1
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1
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655
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0
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1
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560
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0
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1
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519
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0
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1
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623
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0
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1
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546
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0
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1
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535
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0
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1
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458
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0
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1
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480
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0
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1
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581
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1
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657
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0
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1
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668
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1
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645
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1
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612
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0
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1
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703
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0
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1
answer
724
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0
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1
answer
634
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