In this bonus circuit, you will design a 4-story elevator system using a Moore Machine. The elevator can be on one of any four floors, and the floor number is displayed onto a 7-segment display. There are two master buttons that control the elevator floor: an UP button that tells the elevator to go up, and a DOWN button that tells the elevator to go down. If both buttons are pressed simultaneously, nothing will happen. If the elevator is on the 1st floor and the DOWN button is pressed, the elevator will stay put. Similarly, if the elevator is on the 4th floor and the UP button is pressed, the elevator will stay put. State Definition & Diagram Define each of the necessary states, and their corresponding output values. Then, draw a state diagram and fill out the state table. State Table Current State Next State Output AB A B+ Z2Z1Zo UD=001 01 10