def square (val):
  result = val * val
  return result

def poly1 (val):
  result = (val * val) + (3 * val) + 5
  return result

def driver1 ():
  for i in range (0, 10):
    sqr = square (i)
    poly = poly1(i)
    print i, " ", sqr, " ", poly

def modColor (p):
  setRed (p, getRed(p) * 0.75)

def driver2 ():
  pict = makeEmptyPicture  (20, 20)
  pix = getPixel (pict, 1,1)
  for i in range (0, 200, 20):
    setRed (pix, i)
    modColor (pix)
    print i, " ", getRed(pix)