"o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">expr</span> <span class="o">+</span> <span class="s2">&quot;;&quot;</span><span class="p">)</span>
    <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="n">expr</span><span class="si">}</span><span class="s2"> = </span><span class="si">{</span><span class="n">result</span><span class="si">}</span><span class="s2">&quot;</span><span cla