s="emphasis"><em><span class="bold"><strong>A2</strong></span></em></span> a2, ..., <span class="emphasis"><em><span class="bold"><strong>AN</strong></span></em></span> aN);
<span class="bold"><strong><span class="emphasis"><em>R f</em></span></strong></span>(<span class="emphasis"><em><span class="bold"><strong>A1</strong></span></em></span> a1, <span class="emphasis"><em><span class="bold"><strong>A2</strong></span></em></span> a2, ..., <span class="emphasis"><em><span class="bold"><strong>AN</strong></sp