Write a program to simulate the operation of a sequential taillight system. The light system consists of three separate lights on each side of the car. Each set of lights will be activated separately, by either the left or right turn signal switch. There is to be a 1-s delay between the activation of each light, and a l-s period when all the lights are off. Ensure that when both switches are on, the system will not operate. Use the least number of timers possible. The sequence of operation should be as follows: The switch is operated. Light I is illuminated. Light 2 is illuminated 1 s later. Light 3 is illuminated 1 s later. Light 3 is illuminated for I s. All lights are off for 1 s. The system repeats while the switch is on.