Question from the Object-oriented programming - Fundamentals test

What does the following code return ?

public class A {
    public int x = 1
    protected int y = 2
    private int z = 3

    public int getZ() {
        return z;
    }

}

public class B extends A {
    public int getY() {
        return y;
    }
}

A b = new B();
print(b.x - b.getY() - b.getZ())