ord">char</span><span class="special">,</span> <span class="keyword">unsigned</span><span class="special">&gt;</span> <span class="identifier">tens</span><span class="special">;</span>
    <span class="identifier">qi</span><span class="special">::</span><span class="identifier">symbols</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">,</span> <span class="keyword">unsigned</span><span class="special">&gt;</span> <span class="identifier">ones</span><span class="sp