Draw a zebra crossing with six white vertical rectangles on a black background. Each rectangle must be 30 units wide and 150 units high, with a 20-unit gap between neighboring rectangles. Center the group on the canvas.

Place every rectangle at y0 = 0. Use these x0 values for their centers, from left to right: -125, -75, -25, 25, 75, and 125.

Use this function:

def draw_centered_rectangle(x0, y0, width, height, color):