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Language/Type: PHP recursion recursion mystery
Author: Melissa Hovik (on 2018/01/05)

Given the function below, what is the output of the following call?

function mystery($n) {
    if ($n < 1) {
        return $n;
    } else {
        $a = intval($n / 10);
        return $n + mystery($a);
(order shuffled)

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