Write a Python program that shows a turtle walking back and forth between two vertical walls. Please do the following:

Create a 800 X 600 Turtle Graphics window

Draw a vertical line at x-coordinate = -300. The y-coordinates of the two end points are 200 and -200, respectively.

Draw another vertical line at x-coordinate = 300. The y-coordinates of the two end points are 200 and -200, respectively.

Create a turtle object and change the shape from arrowhead to turtle.

Use a loop to make the turtle walk 2000 steps. Whenever the turtle hits a wall, it turns 180 degree and continues to walk.