3. If the equation $x^{2}+p x+q=0$ and the equation $x^{2}-\frac{1}{q} x+\frac{1}{q}=0$ both have equal real roots, and their roots are reciprocals of each other, then the value of $1992 p^{2}-12 q-6$ is . $\qquad$
3. 1983