Order of pairs in the stream

Examine the stream (pairs integers integers) . Can you make any general comments about the order in which the pairs are placed into the stream? For example, about how many pairs precede the pair (1, 100) ? the pair (99, 100) ? the pair (100, 100) ? (If you can make precise mathematical statements here, all the better. But feel free to give more qualitative answers if you find yourself getting bogged down.)

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