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This text is to show, how long are the lines in a regular paragraph. So this is just some uninteresting text. Dummy text here. Nothing interesting, move along. Really some very not useful text. I hope it is enough of text to see, where lines end.
And now we come to the part, that is problematic. See the set
$\{a_1, b_1, a_2, b_2, \ldots, a_m, b_m\}$?
How long the line is?
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