The overall objective is to create a line tracking robot. The system has two digital inputs and two digital outputs. You can simulate the system with two switches and two LEDs, or build a robot with two DC motors and two optical reflectance sensors. Both sensor inputs will be on if the machine is completely on the line. One sensor input will be on and the other off if the machine is just going off the track. If the machine is totally off the line, then both sensor inputs will be off. Implement the controller using a finite state machine. Choose a Moore or Mealy format as appropriate.