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parameterMystery9

Language/Type: JavaScript parameters return

The following console program uses parameters and produces four lines of output. What are they? 

function main() {
    let a = 5;
    let b = 1;
    let c = 3;
    let three = a;
    let one = b + 1;
    axiom(a, b, c);
    axiom(c, three, 10);
    three = axiom(b + c, one + three, a + one);
    a++;
    b = 0;
    a = axiom(three, 2, one);
}

function axiom(c, b, a) {
    console.log(a + " + " + c + " = " + b);
    return a + b;
}
line 1
line 2
line 3
line 4

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