package Thirteen;

    import java.math.BigInteger;

    public class Thirteen implements Runnable {
    private BigInteger p, q, r;

    public Thirteen(BigInteger p, BigInteger q, BigInteger r) {
        this.p = p;
        this.q = q;
        this.r = r;
    }
    private BigInteger calculatePSquare() {
        return p.pow(2);
    }
    private BigInteger calculate3TimesPQ() {
        return p.multiply(BigInteger.ONE.add(BigInteger.TWO)).multiply(q);
    }
    private BigInteger calculateQSquare() {
        return q.pow(2);
    }
    private BigInteger calculateRSquare() {
        return r.pow(2);
    }
    public boolean calculateEquation() {
        //Equation: p² + 3pq + q² = r²
        if (calculatePSquare().add(calculate3TimesPQ()).add(calculateQSquare()).equals(calculateRSquare())) {
            System.out.println("p: " + p + " q: " + q + " r: " + r);
        }
        return calculatePSquare().add(calculate3TimesPQ()).add(calculateQSquare()).equals(calculateRSquare());
    }
    @Override
    public void run() {
        calculateEquation();
    }
    }