span class="o">&gt;</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span>
                    <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;*****Annealing a = </span><span class="si">{</span><span class="n">a</span><span class="si">}</span><span class="s2"> failed****</span><span class="se">\n</span><span class="s2">&quot;</span><span class="p">)</span>

                <span class="k">return</span> <span class="kc">None</span