$$29 \times 5 - 12 \times 7 - 13 \times 5 + 82 \times 8$$
$652$
$$145-12\times 7-13\times 5+82\times 8$$
$$145-84-13\times 5+82\times 8$$
$$61-13\times 5+82\times 8$$
$$61-65+82\times 8$$
$$-4+82\times 8$$
$$-4+656$$
$$652$$
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$2^{2}\times 163$
