/span><span class="p">,</span><span class="nb">trim</span><span class="p">(</span><span class="n">read_from_file</span><span class="p">),</span><span class="n">ios</span>
<span class="w">      </span><span class="k">if</span><span class="p">(</span><span class="n">ios</span><span class="p">.</span><span class="n">ne</span><span class="p">.</span><span class="mi">0</span><span class="p">)</span><span class="k">exit</span>
<span class="k">      </span><span class="n">inl</span><span class="o">=</span><span cl