span><span class="nx">Nu</span><span class="p">,</span><span class="nx">Iseed</span><span class="p">,</span><span class="nx">X</span><span class="p">)</span>
<span class="w">   </span><span class="nx">call</span><span class="w"> </span><span class="nx">plotxt</span><span class="p">(</span><span class="nx">x</span><span class="p">,</span><span class="nx">n</span><span class="p">)</span>
<span class="w">   </span><span class="nx">call</span><span class="w"> </span><span class="nx">sort</span><span class="p">(