A friend would like you to build an "electronic eye" for use as a fake security device. The device consists of three lights lined up in a row, controlled up by the outputs left, Middle, and Right, which if asserted, indicate that a light should be on. Only one light is on at a time, and the light moves from left to right. Only one light is on at a time, and the light moves from left to right and then from right to left, thus scaring away thieves who believe that the device is monitoring their activity.

Draw the graphical representation for the finite state machine used to specify the electronic eye. Note that the rate of the eyes movement will be controlled by the clock speed (which should not be too great) and there are essentially no inputs.