def lineCompare():
  pict = makePicture(pickAFile())
  K = requestInteger("inserire un valore")
  count = 0
  for y in range(0, getHeight(pict)):
    redTot = 0
    for x in range(0, getWidth(pict)):
      pix = getPixel(pict, x, y)
      redTot = redTot + getRed(pix)
    if redTot == K:
      count = count + 1
      return true
  if count != 0:
    print count
  return false