><span class="identifier">length</span><span class="special">(</span><span class="number">0</span><span class="special">));</span>
   <span class="special">}</span>
   <span class="keyword">else</span>
   <span class="special">{</span>
      <span class="keyword">throw</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">runtime_error</span><span class="special">(</span><span class="string">"No Greek found!"</span><span class="special">);</span>
   <span class="s