"%identity"</span><br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;(&nbsp;^^&nbsp;)&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;(<span class="keywordsign">'</span>a,&nbsp;<span class="keywordsign">'</span>b,&nbsp;<span class="keywordsign">'</span>c,&nbsp;<span class="keywordsign">'</span>d,&nbsp;<span class="keywordsign">'</span>e,&nbsp;<span class="keywordsign">'</span>f)&nbsp;format6&nbsp;<span class="keywordsign">-&gt;</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;(<span class="keywordsign">'</span>f,&nbsp;<span class