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if/else simulation

Language/Type: Java if/else mod mystery
Author: Kimberly Todd (on 2010/12/28)

For each call of the method below, write the value that is returned: 

public static int mystery(int n) {
    if (n < 0) {
        n = n * 3;
        return n;
    } else {
        n = n + 3;
    }
    if (n % 2 == 1) {
        n = n + n % 10;
    }
    return n;
}
mystery(-5);
mystery(0);
mystery(7);
mystery(18);
mystery(49);

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