def f(A, B, d):
 for x in range(0, getWidth(A)):
  for x in range(0, getWidth(B)):
   if g(A, B, x, d):
    return true
   return false

def g(A,B,k, d):
 for y in range(0, getHeight(B)):
  for y in range(0, getHeight(A)):
   p=getPixel(A, k, y)
   q=getPixel(B, k, y)
   s=getPixel(B, k, y+1)
   if distance(makeColor(getRed(p),getGreen(p),getBlue(p)), makeColor(getRed(q),getGreen(q),getBlue(q)))<=d and distance(makeColor(getRed(p),getGreen(p),getBlue(p)), makeColor(getRed(s),getGreen(s),getBlue(s)))<=d:
    return true
   return false