Use Stokes' theorem to evaluate $\iint_S curl(\mathbf{F}) \cdot d\mathbf{S}$.
$\mathbf{F}(x, y, z) = e^{3xy}\mathbf{i} + e^{xz}\mathbf{j} + x^2z\mathbf{k}$, $S$ is the half of the ellipsoid $4x^2 + y^2 + 4z^2 = 4$ that lies to the right of the xz-plane, oriented in the direction of the positive y-axis.