Let p be a prime number and the set $\mathbb{Z}_p = \{0,1,2,\cdots,p-1\}$. We can map a vector $a=\langle a_0,a_1,a_2,\cdots,a_{k-1}\rangle$ into a vector $b=\langle b_0,b_1,b_2,\cdots,b_{p-1}\rangle$, where $p>k>1$, $a_i,b_i\in\mathbb{Z}_p$ and $b_j=\sum_{i=0}^{k-1}a_ij^i \bmod p$, for $j=0,\ldots,p-1$.