 class="o">=</span><span class="n">size</span><span class="p">(</span><span class="n">dest</span><span class="p">)</span>
	<span class="k">do </span><span class="n">j</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span><span class="n">n</span>
		<span class="n">i</span><span class="o">=</span><span class="n">dest_index</span><span class="p">(</span><span class="n">j</span><span class="p">)</span>
		<span class="k">if</span> <span class="p">(</span><span class="n">i</span> <span cl