In the circuit shown, capacitor \(C_1\) with capacitance \(3C\) is initially charged to a potential difference \(V_0\). Capacitors \(C_2\) of capacitance \(6C\) and \(C_3\) of capacitance \(3C\) are initially uncharged and connected in series with an open switch \(S\) across \(C_1\). After switch \(S\) is closed and the system reaches electrostatic equilibrium, what is the total electrostatic energy dissipated in the circuit?