n><span class="n">N</span>
<span class="w">                     </span><span class="k">IF</span><span class="w"> </span><span class="p">(</span><span class="w"> </span><span class="n">XS</span><span class="p">(</span><span class="n">k</span><span class="p">)</span><span class="o">/=</span><span class="n">XS</span><span class="p">(</span><span class="n">j</span><span class="p">)</span><span class="w"> </span><span class="p">)</span><span class="w"> </span><span class="k">GOTO</span><span class="w"> </span><s