Lemma
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AQuA-RAT train #11798 · Number Theory · Digits

How many positive four-digit integers do not contain any digits other than…

How many positive four-digit integers do not contain any digits other than 1 or 0 and are such that the sum of the first two digits equals the sum of the last two digits?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #11798

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