Write a function to mirror the input picture’s leftmost 20 pixels to pixels 20 to 40.

What will be an ideal response?

```
def copyOverTwenty (src):
w = getWidth(src)
h = getHeight(src)
for x in range(0, 20):
for y in range(0,h):
p = getPixel(src, 40-x, y)
p2 = getPixel(src, x, y)
color = getColor(p2)
setColor(p, color)
```

Note: This question is very similar to many we have done before, the key is which pixels it writes to and from. In particular, the range for the first for loop and the line “p = getPixel(src, 40-i, j)”.