s="n">expressions</span> <span class="o">=</span> <span class="p">[</span><span class="s2">&quot;2+3*4&quot;</span><span class="p">,</span> <span class="s2">&quot;(1+2)*3&quot;</span><span class="p">,</span> <span class="s2">&quot;10/2+5&quot;</span><span class="p">]</span>
<span class="k">for</span> <span class="n">expr</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">:</span>
    <span class="n">result</span> <span class="o">=</span> <span class="n">xy</span><span class=