pan class="dv">1</span>   <span class="dv">2</span></span>
<span id="cb2-9"><a href="#cb2-9" aria-hidden="true"></a>     <span class="dv">2</span><span class="op">:</span><span class="st">   </span><span class="dv">1</span>   <span class="dv">3</span></span>
<span id="cb2-10"><a href="#cb2-10" aria-hidden="true"></a>     <span class="dv">3</span><span class="op">:</span><span class="st">   </span><span class="dv">1</span>   <span class="dv">4</span></span>
<span id="cb2-11"><a href="#cb2-11" aria-hidden="tr