The scene shows 10 circular lights in a horizontal row on a white background. Lights on are red with glow; lights off are gray. Initially, some lights are on and some are off.

Your task: Modify the light states so that the leftmost 3 lights (counting from left to right) are on (red with glow), and all other lights are off (gray). Turn lights on/off as needed. Lights change from gray to red (with glow) when turned on, and from red to gray (glow disappears) when turned off. Lights stay in fixed positions; only their states change. Only modify what the task requires; keep the background and any other element unchanged.