<image> As shown in the figure, a plane needs to fly from point A to point B. Due to strong winds, it deviates from the original route (AB) by 18° at the beginning (i.e., ∠A = 18°) and arrives at point C. It is known that ∠ABC = 10°. What angle should the plane now fly at to reach point B? (i.e., find the degree measure of ∠BCD)