the contents
          of <code class="computeroutput"><span class="identifier">result</span></code>. 
</p>
<pre class="programlisting"><span class="identifier">T</span> <span class="identifier">s1</span> <span class="special">=</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">s2</span> <span class="special">=</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">y</span> <span class="special">=</span> <span class="iden