>innz</span><span class="p">)</span>  <span class="o">=</span> <span class="n">ir1</span>
      <span class="n">a_elt</span><span class="p">(</span><span class="n">innz</span><span class="p">)</span> <span class="o">=</span> <span class="n">a_elt</span><span class="p">(</span><span class="n">jj</span><span class="p">)</span>

      <span class="k">do </span><span class="n">j</span> <span class="o">=</span> <span class="n">jj</span> <span class="o">+</span><span class="mi">1</span><span class="p">,</span> <s