  Let $p$ be a large prime, and let $k\ll \log p$. A new proof of the existence
of any pattern of $k$ consecutive quadratic residues and quadratic nonresidues
is introduced in this note. Further, an application to the least quadratic
nonresidues $n_p$ modulo $p$ shows that $n_p\ll (\log p)(\log \log p)$.
