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Today, both paper and pens are a ubiquitous and affordable resource.
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Today, both paper and pens are a ubiquitous and affordable resource.

Today, both paper and pens are a ubiquitous and affordable resource.

Today, both paper and pens are a ubiquitous and affordable resource.

Today, both paper and pens are a ubiquitous and affordable resource.

Today, both paper and pens are a ubiquitous and affordable resource.