record R() {
    @Override
    public boolean equals(Object obj) {
        return false;
    }

    @Override
    public int hashCode() {
        return 0;
    }

    @Override
    public String toString() {
        return "";
    }

    @Override
    protected Object clone() throws CloneNotSupportedException {
        return super.clone();
    }

    @Override
    protected void finalize() throws Throwable {
        super.finalize();
    }
}