[1,2,4,-4,-2,-1,1,2,4,-4,-2,-1,1,2,4,-4,-2,-1,1,2, 4,-4,-2,-1,1,2,4,-4,-2,-1,1,2,4,-4,-2,-1,1,2,4,-4, -2,-1,1,2,4,-4,-2,-1,1,2,4,-4,-2,-1,1,2,4,-4,-2, -1,1,2,4,-4,-2,-1,1,2,4,-4,-2,-1,1,2]