Write a function that treats horizontal thirds of the picture differently. Make the top third of an input picture brighter, then the middle third decrease blue and green by 30%, then the bottom third should be made negative.

What will be an ideal response?

```
def thirdsies(picture):
firstThird = (getHeight(picture)/3.0)
secondThird = (getHeight(picture)/3.0)*2
for p in getPixels(picture):
y= getY(p)
if y c = getColor(p)
setColor(p,makeLighter(c))
elif (y>firstThird) and (y blueVal = getBlue(p)-getBlue(p)*0.3
greenVal = getGreen(p)-getGreen(p)*0.3
setBlue(p,blueVal)
setGreen(p,greenVal)
elif y>secondThird:
redVal = 255-getRed(p)
greenVal = 255-getGreen(p)
blueVal = 255-getBlue(p)
setColor(p,makeColor(redVal,greenVal,blueVal))
```

Note: Use of the function makeLighter is not required for the left size of the image. One could also have increased the value of each pixel with new code.