e>  <span class="c1">// modern and hip</span>
  <span class="n">string</span> <span class="n">str</span> <span class="o">=</span> <span class="s">"My message"</span><span class="p">;</span>
  <span class="n">cout</span> <span class="o">&lt;&lt;</span> <span class="n">str</span> <span class="o">&lt;&lt;</span> <span class="n">endl</span><span class="p">;</span>
</code></pre></div>    </div>
  </li>
  <li>
    <p><strong>for vs while:</strong> Use a <code class="language-c++ highlighter-rouge"><span class="k"