\text{HF} + H \cdot \right.,$$ $$\left. C_{0}F_{0} \cdot + H_{0}\rightarrow C_{0}F_{0}H + H \cdot \right.,$$ $$\left. C_{0}F_{0} \cdot + H_{0}\rightarrow C_{0}F_{0}H + H \cdot \right.,$$ $$\left. C_{0}F_{0} \cdot + H_{0}\rightarrow C_{0}F_{0}