Question: What does the following code do? public int mystery(int a, int b) { if (b == 1) { return a; } else { return a

What does the following code do?
    public int mystery(int a, int b) {
    if (b == 1) {
    return a;
    }
    else {
    return a + mystery(a, b - 1);
    }
    }

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